From Longman Dictionary of Contemporary Englishdiatribedi‧a‧tribe /ˈdaɪətraɪb/ noun [countable] formal CRITICIZEa long speech or piece of writing that criticizes someone or something very severelydiatribe against a diatribe against contemporary American civilization
Examples from the Corpus
diatribe• I read message after message spouting racist doctrines, discriminatory diatribes and personal attacks.• And judging by the prodigious pile of diatribes posted in the last year, a lot of folks are taking advantage.• They substitute character attack and personal diatribe for principled debate and discussion of the issues.• Merton has a previously undreamed of knack of the one-minute, long-winded trainspotter diatribe.Origin diatribe (1500-1600) Latin diatriba, from Greek diatribe “enjoyable activity, speech”, from diatribein “to pass time” 