improperUK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˌɪmˈprɒpər/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/ɪmˈprɑpɚ/ ,USA pronunciation: respelling(im prop′ər) improper WordReference English Thesaurus © 2026 Sense: Unsuitable Synonyms: unseemly, at odds, ill-advised, indecorous, incongruous, out of place, incorrect, unwarranted, undue Collocations, untimely, inopportune, malapropos, unfitting, inappropriate Collocations, unsuitable, inapt Sense: Immoral Synonyms: Recent forum discussions about thesaurus entries: All sorts of improper things suggested themselves - English Only forum
bad manners/improper etiquette - English Only forum charges including accepting improper gains, money laundering, ... - listing - English Only forum convicted, because it is now held that it is logically improper to deduce ought from is - English Only forum deficiencies are improper communication and how to correct them - English Only forum Given v. when given v. an improper algebraic fraction when given - English Only forum harsh or improper shifting when push comes to shove - English Only forum illegal, illiberal, improper or lawless? - English Only forum improper 'but' - English Only forum <improper> <faulty> <defective> product - English Only forum Improper grammar? - English Only forum improper slaughter occurs - English Only forum Improper vs not proper - English Only forum inappropriate words vs improper words - English Only forum inappropriate/improper/unreasonable - English Only forum incorrect/ wrong/ improper characteristics - English Only forum Is "who are" grammatically improper in a question? - English Only forum misuse, abusive, improper oil extraction - English Only forum they would combat “the desire in foreign powers to gain an improper ascendant in our councils.” - English Only forum
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