frighten 0 antonyms and opposites of frighten. Verb — To make someone feel afraid or alarmed; to scare. Synonyms for frighten alarm affright appall dismay fray grill harrow horrify make someone's blood run cold mortify petrify scare scare straight scare the bejeebers out of scare the hell out of scare the pants off of terrorize terrify spook ← Back to the full definition of frighten
