ɪmˈpɹɒp.ə ɪmˈpɹɔp.ə ɪmˈpɹɑ.pɚ ɹɒŋ ɹɔŋ not appropriate for a purpose or occasion said all the wrong things not suitable or right or appropriate slightly improper to dine alone with a married man improper medication improper attire for the golf course not conforming to legality, moral law, or social convention an unconventional marriage improper banking practices