STUPEFY Meaning of STUPEFY in English verb 1.Synonyms: dull 5, blunt, hebetate 2.Synonyms: daze 2, bedaze, bemuse, benumb, paralyze, petrify, stun Related Word: addle, faze, rattle; nonplus Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003