Synonymes flat (anglais)

Adverbe
- affirmation : absolutely, definitely, positively
- position : horizontally

Nom
- building : apartment, suite

Adjectif
- characteristic : level, equal, even, horizontal, plane, smooth, low, prone
- characteristic : flavourless, dead, unseasoned, insipid, stale, tasteless, unsavoury, vapid
- manner : fixed, absolute, downright, outright, peremptory, positive, unqualified
- property : collapsed
- property : boring, pointless, dull, lifeless, prosaic, spiritless, tedious, unanimated