This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The state of being flat

n. The state of being two-dimensional; planar : planarity

n. The state of being bland : dullness

n. Mattness, the quality of a painted surface which scatters or absorbs the light falling on it, so as to be substantially free from gloss or sheen

n. Lack of bouquet and freshness of a wine, through too much aeration or infection with film yeasts

n. Sometimes used as a synonym for slim-tailedness or platykurticity

n. The quality or state of being flat.

n. Eveness of surface; want of relief or prominence; the state of being plane or level.

n. Want of vivacity or spirit; prostration; dejection; depression.

n. Want of variety or flavor; dullness; insipidity.

n. Depression of tone; the state of being below the true pitch; -- opposed to sharpness or acuteness.

n. The state or quality of being flat.

n. Graveness of sound, as opposed to sharpness, acuteness, or shrillness.

n. Absoluteness; completeness.

n. In music, the quality or state of being below a true or given pitch.

n. inactivity; showing an unusual lack of energy

n. the property of having little or no contrast; lacking highlights or gloss

n. a want of animation or brilliance

n. a deficiency in flavor

n. the property of having two dimensions

"My reservations about Mr. Galassi's translations have to do with a certain flatness of tone."

sharpness    acuteness   

inertia    inactiveness    inactivity    dullness    style    expressive style    taste perception    gustatory perception    gustatory sensation    taste sensation   

elementary flatness    flatness of the field   

prostration    dejection    depression    dullness    insipidity   

monotony    smoothness    linearity    sameness    emptiness    distinctness    aridity    uniformity    insignificance    fullness