n. The state or quality of being absurd or inconsistent with obvious truth, reason, or sound judgment; want of rationality or common sense: as, the absurdity of superstition; absurdity of conduct.n. That which is absurd; an absurd action, statement, argument, custom, etc.: as, the absurdities of men; your explanation involves a gross absurdity.n. Synonyms Absurdness, silliness, unreasonableness, self-contradiction, preposterousness, inconsistency. See folly.