Definition: (1) the quality of having wrinkles or creases; (2) In Botany: the characteristic of a rough, wrinkled surface, as in certain prominently veined leaves.
“I can see the shadows on the wall, drifting as the leaves start to fall. Unfazed by rugosity, the objects yield to gravity and depict the destiny of us all.”
—“In So Many Ways” on No Substance
In a sentence: The rugosity of bacon makes it easy to grip, despite its greasiness.
Synonyms: wrinkledness, coarseness, unevenness, friction
Antonyms: smoothness, gloss
sources: thesaurus.com, the free dictionary