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1. Having a surface without slope, tilt in which no part is higher or lower than another
   "a flat desk"; "skirts sewn with fine flat seams";
   - level, plane
    
2. (photography) lacking contrast or shading between tones
    
3. (of a musical note) lowered in pitch by one chromatic semitone
   "B flat"
    
4. Having a relatively broad surface in relation to depth or thickness
   "flat computer monitors"
    
5. Not modified or restricted by reservations
   "a flat refusal";
   - categoric, categorical, unconditional
    
6. Stretched out and lying at full length along the ground
   "found himself lying flat on the floor";
   - prostrate
    
7. (biology) flattened laterally along the whole length (e.g., certain leafstalks or flatfishes)
   - compressed
    
8. Lacking taste, flavour or tang
   "a flat diet";
   - bland, flavorless [US], flavourless [Brit, Cdn], insipid, savorless [US], savourless [Brit, Cdn], vapid
    
9. Lacking stimulating characteristics; uninteresting
   "a flat joke";
   - bland
    
10. Having lost effervescence
    "flat beer"; "a flat cola"
     
11. Sounded or spoken in a tone unvarying in pitch
    "the owl's faint flat hooting";
    - monotone, monotonic, monotonous
     
12. Horizontally level
    "a flat roof"
     
13. Lacking the expected range or depth; not designed to give an illusion or depth
    "a flat two-dimensional painting";
    - two-dimensional, 2-dimensional
     
14. Not reflecting light; not glossy
    "flat wall paint";
    - mat, matt, matte, matted
     
15. Commercially inactive
    "flat sales for the month"; "prices remained flat"; "a flat market"
     
16. [Brit] Drained of electric charge; discharged
    "a flat battery";
    - dead, drained

1. A level tract of land
   "the salt flats of Utah"
    
2. A shallow box in which seedlings are started
    
3. A musical notation indicating one half step lower than the note named
    
4. [N. Amer] Freight car without permanent sides or roof
   - flatcar [N. Amer], flatbed
    
5. [N. Amer] A deflated pneumatic tire
   - flat tire [N. Amer], flat tyre [Brit], puncture
    
6. Scenery consisting of a wooden frame covered with painted canvas; part of a stage setting
    
7. [Brit] A suite of rooms usually on one floor of an apartment house
   - apartment

1. With flat sails
   "sail flat against the wind"
    
2. In a forthright manner; candidly or frankly
   "came out flat for less work and more pay";
   - directly, straight

1. [Austral, NZ] Live in or share an apartment
    
2. (music) lower a note in pitch

Derived forms: flatted, flats, flattest, flatting, flatter

See also: dull, even, horizontal, inactive, multidimensional, noneffervescent, planar, tasteless, thin, two-dimensional, uncharged, unerect, unexciting, unmodulated, unqualified, unstimulating

Type of: box, champaign, field, flatland, freight car, housing, living accommodations, lodging, musical notation, plain, pneumatic tire [N. Amer], pneumatic tyre [Brit], scene, scenery

Antonym: contrasty, indirectly, natural, sharp

Part of: apartment building, apartment house, mise en scène, setting, stage setting

Encyclopedia: Flat, Puy-de-Dome