perfect
Americanadjective
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matching in every detail the definition of an ideal type of something.
Even a ball bearing is not a perfect sphere.
Your son is a perfect gentleman!
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excellent or complete beyond practical or theoretical improvement.
There is no perfect legal code.
The proportions of this temple are almost perfect.
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exactly fitting the need in a certain situation or for a certain purpose.
He is the perfect actor to play Mr. Micawber.
I have the perfect saw for cutting out keyholes.
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entirely without any flaws, defects, or shortcomings.
She chose a perfect apple from the bowl.
It was very nearly the perfect crime—next to impossible for detectives to solve.
- Synonyms:
- picture-perfect, faultless, flawless
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accurate, exact, or correct in every detail.
I’ll email you a perfect copy when revisions are complete.
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thorough or complete; absolute; utter.
A week ago we were perfect strangers, and already we’ve become friends.
He made a perfect fool of himself.
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expert; accomplished; proficient.
She will need a perfect driving teacher.
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pure or unmixed.
perfect yellow.
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Botany.
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having all parts or members present.
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Grammar. designating a verb aspect or other verb category used for an action or state that is or will be complete as of some point of reference in time, and that is thought of with regard to its relevance or effect for that time.
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Music.
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of or designating the consonances of unison, octave, and fifth, as distinguished from those of the third and sixth.
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of or designating the intervals, harmonic or melodic, of an octave, fifth, and fourth in their normal form, as opposed to augmented and diminished.
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Mathematics. (of a set) equal to its set of accumulation points.
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Obsolete. assured or certain.
noun
verb (used with object)
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perfects,
present (3rd person singular)
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perfected,
past participle, past
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perfecting
present participle
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to bring to perfection; make flawless or faultless.
He has succeeded in perfecting his recipe for chicken Kiev.
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to bring nearer to perfection; improve; make better.
She works hard to perfect her writing.
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to make fully skilled.
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to bring to completion; finish.
Nietzsche believed that the emergence of the Superman would perfect the evolution of the human race.
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Printing. to print the reverse of (a printed sheet).
adjective
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having all essential elements
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unblemished; faultless
a perfect gemstone
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correct or precise
perfect timing
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utter or absolute
a perfect stranger
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excellent in all respects
a perfect day
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maths exactly divisible into equal integral or polynomial roots
36 is a perfect square
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botany
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(of flowers) having functional stamens and pistils
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(of plants) having all parts present
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grammar denoting a tense of verbs used in describing an action that has been completed by the subject. In English this is a compound tense, formed with have or has plus the past participle
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music
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of or relating to the intervals of the unison, fourth, fifth, and octave
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Also: full, final. (of a cadence) ending on the tonic chord, giving a feeling of conclusion Compare imperfect
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archaic positive certain, or assured
noun
verb
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to make perfect; improve to one's satisfaction
he is in Paris to perfect his French
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to make fully accomplished
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printing to print the reverse side of (a printed sheet of paper)
Usage
A few usage guides still object to the use of comparison words such as more, most, nearly, almost, and rather with perfect on the grounds that perfect describes an absolute, yes-or-no condition that cannot logically be said to exist in varying degrees. The English language has never agreed to this limitation. Since its earliest use in the 13th century, perfect has, like almost all adjectives, been compared, first in the now obsolete forms perfecter and perfectest, and more recently with more, most, and similar comparison words: the most perfect arrangement of color and line imaginable. Perfect is compared in most of its general senses in all varieties of speech and writing. After all, one of the objectives of the writers of the U. S. Constitution was “to form a more perfect union.” See also complete, unique.
For most of its meanings, the adjective perfect describes an absolute state, i.e. one that cannot be qualified; thus something is either perfect or not perfect, and cannot be more perfect or less perfect. However when perfect means excellent in all respects, a comparative can be used with it without absurdity: the next day the weather was even more perfect
Other Word Forms
Derived Forms
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perfecternoun
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perfectnessnoun
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nonperfectedadjective
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quasi-perfectadjective
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self-perfectingadjective
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superperfectadjective
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unperfectadjective
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unperfectedadjective
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perfectedlyadverb
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quasi-perfectlyadverb
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superperfectlyadverb
Inflected Forms
Participles
Conjugated Forms
Present
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perfectsimple
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perfectssimple
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have perfectedperfect
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has perfectedperfect
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am perfectingprogressive
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are perfectingprogressive
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is perfectingprogressive
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have been perfectingperfect progressive
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has been perfectingperfect progressive
Past
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perfectedsimple
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had perfectedperfect
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was perfectingprogressive
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were perfectingprogressive
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had been perfectingperfect progressive
Future
Etymology
Origin of perfect
First recorded in 1250–1300; from Latin perfectus “finished,” past participle of perficere “to finish, bring to completion,” from per- per- + -fecere, combining form of facere “to do, make” ( see also do 1); replacing Middle English parfit, from Old French, from Latin, as above
Explanation
Something that is perfect is complete and without defect or blemish. It might also be precisely accurate or exact. The word perfect can also be used as a verb meaning — you guessed it! — to make something perfect. (Note, though, the pronunciation difference: PER-fect as a noun; per-FECT as a verb.) It originally comes from the Latin word perficere, which breaks down into per- ("completely") and facere ("do"). As a noun perfect is a grammatical term referring to a tense of verbs describing an action that has been completed.
Vocabulary lists containing perfect
Preamble to the U.S. Constitution (1787)
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TEKS ELAR Academic Vocabulary List (5th-7th grades)
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"Macbeth" Vocabulary from Act III
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
The living room is the perfect place for guests to sit back and relax thanks to its cozy fireplace and large windows, which allow natural light to flood inside.
From MarketWatch ● Oct. 5, 2026
The trial heard that analysis of an insurance company "black box" showed that Gray had been a "perfect driver" in the weeks before the collision.
From BBC ● Oct. 4, 2026
And in states like Tennessee, which does not carry out many lethal injection executions, members of the execution team do not have the chance to perfect their skill by using it a lot.
From Salon ● Oct. 3, 2026
"At just 50-100 nanometers wide, these particles are the perfect compass needles," said Harrison.
From Science Daily ● Oct. 2, 2026
To our astonishment, the airman was speaking to Mutti in almost perfect German.
From "An Elephant in the Garden" by Michael Morpurgo
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As “Maddie’s Secret” continues, and the titular Maddie falls deeper into the grasp of her titular secret, Early perfects that push and pull.
From Salon ● Jun. 22, 2026
The avatar perfects the theater, showing up with scripted answers.
From MarketWatch ● May 6, 2026
Just as a chef perfects a dish by experimenting with flavors and textures, the researchers used an iterative process, testing variations to find the ideal structure for the ionizable lipid.
From Science Daily ● Nov. 22, 2024
"Stephenson perfects the idea of a railway, from start to finish," said Snow.
From BBC ● Feb. 24, 2024
The sign of both the perfects in this tongue is the syllable nit, and niy means “to die.”
From The Philosophic Grammar of American Languages, as Set Forth by Wilhelm von Humboldt With the Translation of an Unpublished Memoir by Him on the American Verb by Daniel Garrison Brinton
And they weren’t trying to maintain an existing aesthetic but to stand out with the best version of perfected artificiality money could buy.
From Salon ● Oct. 1, 2026
On the precipice of World War II, the Dow Chemical Co. perfected a way to extract magnesium from ordinary seawater, giving America access to a virtually inexhaustible supply of a metal vital to modern warfare.
From The Wall Street Journal ● Aug. 24, 2026
Once perfected, this AI will essentially take over its own development, continuously building and improving its next version.
From Los Angeles Times ● Aug. 12, 2026
How AQR perfected tax-loss harvesting to help the rich get richer.
From Slate ● Aug. 8, 2026
Rishi raised his eyes, making sure to wear the “bored mask” he’d perfected at private school.
From "When Dimple Met Rishi" by Sandhya Menon
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"It's something we spend lots of time and money perfecting," said Sasaki, a fellow voice actor, adding that "we support Tsuda wholeheartedly".
From Barron's ● Sep. 27, 2026
That’s where Messi learned to marry his individual brilliance with the Dutch-infused, team-first style that Barcelona had been perfecting for nearly three decades.
From The Wall Street Journal ● Jul. 18, 2026
Here in the United States, Mikel Arteta's dedication to perfecting Arsenal's routines is an approach England head coach Tuchel is looking to replicate.
From BBC ● Jun. 15, 2026
The company’s ability to operate space-based data centers and ramp up rocket launches depends on perfecting critical technology.
From MarketWatch ● Jun. 11, 2026
If Lawrence’s attention was still devoted more to perfecting the machine than to exploit its powers, both its performance and its results already were being noticed around the world.
From "Big Science" by Michael Hiltzik
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.