A statement or proposition that seems self-contradictory or absurd but in reality expresses a possible truth. The paradox of the situation was that the more he tried to impress her, the less she seemed interested.
A person, thing, or situation that exhibits inexplicable or contradictory aspects. She was a paradox, both shy and outgoing at the same time.
A situation or phenomenon that combines contradictory features or qualities. The paradox of technology is that it can both connect and isolate people.
In logic and mathematics, a statement that contradicts itself or leads to a contradiction, challenging the consistency of a system. Russell's paradox exposed a fundamental problem in naive set theory.