Flat

having a surface without slope, tilt in which no part is higher or lower than another

lacking the expected range or depth; not designed to give an illusion or depth

not modified or restricted by reservations

not reflecting light; not glossy

lacking stimulating characteristics; uninteresting

stretched out and lying at full length along the ground

commercially inactive

having lost effervescence

having a relatively broad surface in relation to depth or thickness

horizontally level

lacking taste or flavor or tang

sounded or spoken in a tone unvarying in pitch

flattened laterally along the whole length (e.g., certain leafstalks or flatfishes)

(of a musical note) lowered in pitch by one chromatic semitone

lacking contrast or shading between tones

a level tract of land

a deflated pneumatic tire

freight car without permanent sides or roof

a suite of rooms usually on one floor of an apartment house

a musical notation indicating one half step lower than the note named

a shallow box in which seedlings are started

scenery consisting of a wooden frame covered with painted canvas; part of a stage setting

in a forthright manner; candidly or frankly