IMPROPER /ɪmˈpɹɔp.ə/ ► audio Scrabble 14 Words With Friends 17 Definition adjective not suitable or right or appropriate. adjective not conforming to legality, moral law, or social convention. — synonyms: unconventional, unlawful adjective not appropriate for a purpose or occasion. — synonyms: wrong See all 84 words you can make from IMPROPER → 8-letter words Words starting with I Words ending with R ← Unscramble different letters