必ひつ要よう悪あくMeaningsNoun1. necessary evilKanji used必certainly要needed悪badPitch accentひつようあくComposed of必ひつ要ようnecessary; needed; essential; indispensable; necessity; need; requirementNa-adjective悪あくevil; wickedness; (role of) the villain (in theatre, etc.); the bad guyNoun