flatness
名词 flatness:
the property of having two dimensions
同义词:two-dimensionality, planeness
a want of animation or brilliance
a deficiency in flavor
the property of having little or no contrast; lacking highlights or gloss
同义词:lusterlessness, lustrelessness, mat, matt, matte
inactivity; showing an unusual lack of energy
同义词:languor, lethargy, sluggishness, phlegm