flatnesses

1. the property of having two dimensionsSynonyms: flatness, planeness, two-dimensionality

2. a want of animation or brillianceExamples: "the almost self-conscious flatness of Hemingway's style"Synonyms: flatness

3. a deficiency in flavorExamples: "it needed lemon juice to sharpen the flatness of the dried lentils"Synonyms: flatness

4. the property of having little or no contrast; lacking highlights or glossSynonyms: flatness, lusterlessness, lustrelessness, mat, matt, matte

5. inactivity; showing an unusual lack of energyExamples: "the general appearance of sluggishness alarmed his friends"Synonyms: flatness, languor, lethargy, phlegm, sluggishness