YourDictionary

Synonyms for flat

modified

  1. Lying in a smooth plane

    level, even, smooth, plane, spread out, extended, stretched out, prostrate, horizontal, low, low-lying, on a level, fallen, flattened, collapsed, deflated, punctured, prone, supine, recumbent, lying down, reclining, two-dimensional, flat as a billiard table*, flat as a pancake*; see also level 2, smooth 1.

    Antonyms rough*, raised, uneven.

  2. Lacking savor

    unseasoned, insipid, flavorless; see dull 4, tasteless 1. See syn. study at insipid, level.

See flat in Webster's New World Roget's A-Z Thesaurus II

Learn more about flat

link/cite print suggestion box