fulminate

to talk loudly and wildly she was embarrassed when her friend began fulminating at the restaurant about what's wrong with today's kids Synonyms bluster, rant, huff, rave, spoutRelated Words sound off, speak out, speak up; blare, blurt out, bolt; bloviate, blow, declaim, harangue, mouth (off), orate, pontificate; carry on, rage, storm, take onNear Antonyms grunt, murmur, mutter, slur; breathe, whisper