Having an even surface, without risings or indentures, hills or valleys; as flat land.

Horizontal; level; without inclination; as a flat roof; or with a moderate inclination or slope; for we often apply the word to the roof of a house that is not steep, though inclined.

Prostrate; lying the whole length on the ground. He fell or lay flat on the ground.

Not elevated or erect; fallen. Cease t’admire, and beauty’s plumes fall flat.

Level with the ground; totally fallen. What ruins kingdoms, and lays cities flat.

In painting, wanting relief or prominence of the figures.

Tasteless; stale; vapid; insipid; dead; as fruit flat to the taste.

Dull; unanimated; frigid; without point or spirit; applied to discourses and compositions. The sermon was very flat.

Depressed; spiritless; dejected. I feel - my hopes all flat.

Unpleasing; not affording gratification. How flat and insipid are all the pleasures of this life!

Peremptory; absolute; positive; downright. He gave the petitioner a flat denial. Thus repulsed, our final hope is flat despair.

Not sharp or shrill; not acute; as a flat sound.

Low, as the prices of goods; or dull, as sales.

A level or extended plain. In America, it is applied particularly to low ground or meadow that is level, but it denotes any land of even surface and of some extent.

A level ground lying at a small depth under the surface of water; a shoal; a shallow; a strand; a sand bank under water.

The broad side of a blade.

Depression of thought or language.

A surface without relief or prominences.

In music, a mark of depression in sound. A flat denotes a fall or depression of half a tone.

A boat, broad and flat-bottomed. A flat-bottomed boat is constructed for conveying passengers or troops, horses, carriages and baggage.