flat

flat · adjective

imported

Definitions

adjective

  1. 1.

    Having a level surface with no raised areas or indentations.

  2. 2.

    Lying horizontally and close to another surface.

  3. 3.

    (British) An apartment or set of rooms on one floor forming a residence.

  4. 4.

    (of a tire) Deflated; having no air.

  5. 5.

    (of a drink) No longer fizzy; having lost carbonation.

  6. 6.

    Dull and lacking interest or emotion.

Phrases & expressions

  • flat out — at maximum speed or effort; completely
  • fall flat — to fail completely
  • flat broke — having no money at all
  • in a flat spin — in a state of confusion

Related words

Antonyms: bumpy, hilly, uneven

Etymology

From Old Norse flatr ("flat, level"), related to Old High German flaz ("flat, shallow"). The housing sense developed in Scotland in the early 19th century.