Part of speech: Noun
a want of animation or brilliance
Example: the almost self-conscious flatness of Hemingway's style
Categories: Expressive style, Style
Part of speech: Noun
a deficiency in flavor
Example: it needed lemon juice to sharpen the flatness of the dried lentils
Categories: Taste, Taste sensation, Gustatory sensation, Taste perception, Gustatory perception
Part of speech: Noun
the property of having little or no contrast; lacking highlights or gloss
Categories: Dullness
Planeness, Lustrelessness, Matte, Sluggishness, Flatness
The word "flatness" comes from Middle English flatnesse.
flat – A related word in the same word family.
ness – A related word in the same word family.
Middle English had more flexible word order than Modern English because it retained more inflections.