flatness

Flat"ness, n. 1. The quality or state of being flat. 2. Eveness of surface; want of relief or prominence; the state of being plane or level. 3. Want of vivacity or spirit; prostration; dejection; depression. 4. Want of variety or flavor; dullness; inspidity. 5. Depression of tone; the state of being below the true pitch; -- opposed to sharpness or acuteness.

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