What is another word for "paradox"?

Roget's Thesaurus (1911) lists these synonyms for "paradox": absurd, absurdity, absurdness, alogy, anagram, anticlimax, arcanum, bathos, blunder, book, boutade, bull, charade, concealed, confidential, contradictory, conundrum, crack, crux, dead, delusion, difficulty, disorder, egregious, enigma, escapade, exaggeration, extravagance, extravagant, fantastic, farce, farrago, fool, foolish, fustian, gibberish, house, ignorance, imbecility, incognita.