contranym

or con·tro·nym

[ kon-truh-nim ]
/ ˈkɒn trə nɪm /

noun

Janus word.

Origin of contranym

First recorded in 1960–65; contra-1 + -(o)nym

Words nearby contranym

contraindicate, contraindication, contralateral, contralateral hemiplegia, contralto, contranym, contraoctave, contraorbital, contraplete, contrapose, contraposition