Synonyms & related words for improper

Find synonyms, related words, and the definition of improper — including unlawful, inappropriate, wrong, malapropos, indecorous, unbecoming. Dendril is a free visual thesaurus that shows them on an interactive map where stronger matches sit closer to the center — no signup, no ads.

Words related to improper

Explore words related to improper — words associated with it, words that go with it, and its nearest matches in meaning. Related words include improperness, improperly, unfittingly, indecorously, unbecomingly, unfitly, inappropriately, unsuitably. Click any word to make it the center of the map and keep exploring the web of connections.

Synonyms for improper

Common synonyms for improper include unlawful, inappropriate, wrong, malapropos, indecorous, unbecoming, unseemly, unsuitable — words that share a close meaning. Hover or tap any word on the map for its definition and part of speech.

Where does improper come from?

The word improper breaks down into one root of Latin origin: the root -proper, from Latin proprius (“one's own”). Explore each root to see other English words built from the same source.