- comparative of flat.
flatter
1 Americanverb (used with object)
-
to try to please by complimentary remarks or attention.
-
to praise or compliment insincerely, effusively, or excessively.
She flatters him by constantly praising his books.
-
to represent favorably; gratify by falsification.
The portrait flatters her.
-
to show to advantage.
a hairstyle that flatters the face.
-
to play upon the vanity or susceptibilities of; cajole, wheedle, or beguile.
They flattered him into contributing heavily to the foundation.
-
to please or gratify by compliments or attentions.
I was flattered by their invitation.
-
to feel satisfaction with (oneself), especially with reference to an accomplishment, act, or occasion.
He flattered himself that the dinner had gone well.
-
to beguile with hope; encourage prematurely, falsely, etc.
verb (used without object)
noun
-
a person or thing that makes something flat.
-
a flat-faced blacksmith's tool, laid on a forging and struck with a hammer to smooth the surface of the forging.
-
a drawplate with a flat orifice for drawing flat metal strips, as for watch springs.
verb
-
to praise insincerely, esp in order to win favour or reward
-
to show to advantage
that dress flatters her
-
(tr) to make to appear more attractive, etc, than in reality
-
to play upon or gratify the vanity of (a person)
it flatters her to be remembered
-
(tr) to beguile with hope; encourage, esp falsely
this success flattered him into believing himself a champion
-
(tr) to congratulate or deceive (oneself)
I flatter myself that I am the best
noun
-
a blacksmith's tool, resembling a flat-faced hammer, that is placed on forged work and struck to smooth the surface of the forging
-
a die with a narrow rectangular orifice for drawing flat sections
Other Word Forms
Derived Forms
Inflected Forms
Participles
Conjugated Forms
Present
-
flattersimple
-
flatterssimple
-
have flatteredperfect
-
has flatteredperfect
-
am flatteringprogressive
-
are flatteringprogressive
-
is flatteringprogressive
-
have been flatteringperfect progressive
-
has been flatteringperfect progressive
Past
-
flatteredsimple
-
had flatteredperfect
-
was flatteringprogressive
-
were flatteringprogressive
-
had been flatteringperfect progressive
Future
Etymology
Origin of flatter1
First recorded in 1175–1225; Middle English flat(t)eren “to float, flutter, fawn upon,” Old English floterian “to float, flutter”; for sense development, cf. flicker 1, Old Norse flathra; reinforced by Old French flatter “to flatter,” literally, “to stroke, caress” (probably from unattested Frankish flat- flat 1 )
Origin of flatter2
Explanation
When you flatter someone, you praise and compliment him or her — but you aren't totally sincere. You flatter your friend by telling her she's the best driver in the world. Because you want her to offer you a ride. The Old French flater originally meant "to stroke or caress," which is what you do to people's egos when you flatter them. When you flatter, you probably want something — it could be as simple as wanting someone to like you. That's why people who meet celebrities tell them they're the greatest. More positively, if your hairstyle flatters your face, it emphasizes your best features.
Vocabulary lists containing flatter
Dead End in Norvelt
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
The Landry News
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
Inherit the Wind
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
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.
But when Jurado sarcastically introduced the next speaker — “Your favorite, Lineage, will now present!” — the joke fell flatter than a solar panel.
From Los Angeles Times • Jul. 10, 2026
"We know in the world of sports when you see good performances and good results everyone thinks of success and people try to flatter you but when you lose it is a catastrophe," he added.
From BBC • Jun. 13, 2026
Armstrong said that Coinbase will adopt a flatter organizational structure, give managers more responsibilities and concentrate on “AI-native talent” who can manage fleets of AI agents.
From MarketWatch • May 5, 2026
Wolf kills aren't distributed at random, Loretto said, occurring more often on flatter terrain or in open valleys where chases are more likely.
From Barron's • Mar. 12, 2026
Then he mumbles, “Matter, flatter, fatter, hatter. Mad Hatter!”
From "Challenger Deep" by Neal Shusterman
![]()
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.