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Definitions

flat

[flat] / flæt /
ADJECTIVE
level, smooth
Synonyms
STRONGEST
empty horizontal low unbroken
STRONG
even flush oblate plane reclining splay
WEAK
collapsed complanate decumbent deflated extended fallen outstretched pancake planar planate procumbent prone prostrate punctured recumbent spread-out supine tabular
Antonyms
STRONGEST
upright
STRONG
rough uneven
WEAK
elevated raised rounded
ADJECTIVE
dull, lackluster to the senses
Synonyms
STRONGEST
bland dead lifeless stale weak
STRONG
blah blind boring drab matte vanilla
WEAK
banal colorless dim draggy flavorless ho-hum inane innocuous insipid jejune lead balloon monotonous muted pointless prosaic prosy sapless spiritless tasteless tedious uninteresting unpalatable unsavory unseasoned vapid watery white-bread
Antonyms
STRONG
exciting
WEAK
bubbly effervescent sharp tasty
ADJECTIVE
absolute, positive
Synonyms
STRONGEST
straight
STRONG
final plain
WEAK
categorical direct downright explicit fixed indubitable out-and-out peremptory unconditional unequivocal unmistakable unqualified unquestionable
Antonyms
WEAK
indefinite
NOUN
apartment
Synonyms
STRONGEST
condo suite tenement walk-up
STRONG
chambers co-op joint lodging pad rental room rooms
WEAK
crash pad floor-through railroad apartment

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.

By most measures the jobs picture for March was flat.

From The Wall Street Journal • Apr. 10, 2026

The French CAC 40 and German DAX both traded flat as gains for luxury and technology stocks were countered by a slide in energy and materials stocks.

From The Wall Street Journal • Apr. 10, 2026

Jurors heard that Abbott's body was found at her flat on the afternoon of 13 June.

From BBC • Apr. 9, 2026

The Hartford Strategic Income ETF, which is flat this year, up nearly 11% over the past 12 months and sports a yield of 5.6%, looks like a solid way for investors to earn steady income.

From Barron's • Apr. 9, 2026

She wouldn’t sit up, and we couldn’t budge her flat.

From "The Teacher’s Funeral" by Richard Peck