"The rhetorical figure that summarizes the idea of semantic paradox is the oxymoron. An oxymoron is an opposition between a term and the qualification that is given it, or between two qualities attributed to a single term, or between the simultaneous denial and assertion of the same fact or concept. The Greek expression “to oxymoron” refers, literally, to the “acutely mad”. The oxymoron is the essence of semantic contradiction whose variants are the paradox and the antithesis. Oxymoron is a semantic approximation of opposites."