MISHAP Meaning of MISHAP in English noun 1.Synonyms: misfortune , adversity, contretemps, ||dole, mischance, tragedy, ||unluck 2.Synonyms: accident 2, casualty, misadventure, mischance Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003