ふとう 不当 Common word JLPT N1 LinksSentence search for 不当Sentence search for ふとうKanji details for 不 and 当Edit in JMdict Na-adjective (keiyodoshi), Noun1. unfair; unjust; wrongful; improper; unreasonable; unwarranted; unjustified; undeserved; unduePlace2. Futou Discussions Log in to talk about this word.