An oxymoron (plural oxymorons or oxymora) (from Greek ὀξύμωρον, "sharp dull") is a figure of speech that combines normally-contradictory terms. Oxymorons appear in a variety of contexts, including inadvertent errors such as extremely average and literary oxymorons crafted to reveal a paradox.
OmegaWiki Dictionary
Ω
oxymoron A figure of speech in which two words with opposing meanings are used together intentionally for effect.