Noun
The quality or state of being flat.
Eveness of surface; want of relief or prominence; the state of being plane or level.
Want of vivacity or spirit; prostration; dejection; depression.
Want of variety or flavor; dullness; insipidity.
Depression of tone; the state of being below the true pitch; -- opposed to sharpness or acuteness.
Source: Webster's dictionaryWhen you're on a highway, viewing the western U.S. with the mountains and the flatness and the desert and all that, it's very much like my paintings. Edward Ruscha
To the mind carefully brought to adulthood in the United States, the truths of anticommunism are self-evident, as self-evident as the flatness of the world once was to an earlier mind... William Blum
On a level plain, simple mounds look like hills; and the insipid flatness of our present bourgeoisie is to be measured by the altitude of its great intellects. Karl Marx
I can often tell when drawings are done from photographs, because you can tell what they miss out, what the camera misses out: usually weight and volume - there's a flatness to them. David Hockney
the general appearance of sluggishness alarmed his friends Source: Internet
it needed lemon juice to sharpen the flatness of the dried lentils Source: Internet