Choose the right synonym for enthusiasm passion fervor ardor enthusiasm zeal mean intense emotion compelling action passion applies to an emotion that is deeply stirring or ungovernable was a slave to his passions fervor implies a warm and steady emotion read the poem aloud with great fervor ardor suggests warm and excited feeling likely to be fitful or short lived. Synonyms for enthusiasm at thesauruscom with free online thesaurus antonyms and definitions find descriptive alternatives for enthusiasm. Enthusiasm en thooze azm n 1 great excitement for or interest in a subject or cause 2 a source or cause of great excitement or interest 3 archaic a ecstasy arising from supposed possession by a god b religious fanaticism late latin enthusiasmus from greek enthousiasmos from enthousiazein to be inspired by a god from . Any of various forms of extreme religious devotion usually associated with intense emotionalism and a break with orthodoxy