improper
/ɪmˈpɹɒp.ə/
Proposed by a contributor, not yet supported by evidence.
Sense 1
Meaning · English
Unsuitable to needs or circumstances; inappropriate; inapt.
Adjective
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
Meaning · English
Not in keeping with conventional mores or good manners; indecent or immodest.
Adjective
Examples
improper conduct
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “improper” mean?
Unsuitable to needs or circumstances; inappropriate; inapt.
Is “improper” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.