perfectly
Americanadverb
-
in a perfect manner or to a perfect degree.
to sing an aria perfectly.
- Synonyms:
- ideally, superbly, flawlessly
-
completely; fully; adequately.
This will suit my purpose perfectly.
He’s perfectly happy to help out.
She’s perfectly capable of making her own decision.
adverb
-
completely, utterly, or absolutely
-
in a perfect way; extremely well
Etymology
Origin of perfectly
First recorded in 1275–1325; perfect + -ly; replacing Middle English parfitly, derivative of parfit ( perfect )
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.
On a perfectly flat plane, the three interior angles of a triangle add up to 180 degrees.
From Science Daily ● Sep. 28, 2026
It was a defensive masterclass and they delivered Bompastor's gameplan perfectly, capping off victory with a third successive clean sheet - a run of 315 minutes without conceding a goal.
From BBC ● Sep. 27, 2026
Upon further review, the machines have found ways to turn this slow-motion trap into a perfectly sound strategy.
From The Wall Street Journal ● Sep. 23, 2026
Professional life is crowded with micro-signals — clothes, cups, phones, tone, timing, posture — ordinary things that remain perfectly neutral until someone decides they are evidence of character.
From Salon ● Sep. 23, 2026
He might find a variety of ice perfectly suited for Snow Delights.
From "The Very, Very Far North" by Dan Bar-el
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.
