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Showing results for improper. Search instead for impropri.
Definitions

improper

[im-prop-er] / ɪmˈprɒp ər /
ADJECTIVE
not suitable
Synonyms
STRONGEST
awkward erroneous false ill-advised imprudent inaccurate inadmissible inappropriate incorrect irregular unwarranted wrong
WEAK
abnormal at odds bad form discordant discrepant ill-timed inadvisable inapplicable inapposite inapt incongruous inexpedient infelicitous inharmonious inopportune ludicrous malapropos odd off-base out of place out-of-season preposterous unapt unbefitting uncalled-for uncomely undue unfit unfitting unseasonable unsuitable unsuited untimely
Antonyms
STRONGEST
OK acceptable accurate appropriate correct honest reasonable right suitable true valid wise
WEAK
de rigueur decent fitting formal good moral proper uncorrupt
ADJECTIVE
vulgar, immoral
Synonyms
STRONGEST
indecent unethical unjust unseemly untoward wrong wrongful
WEAK
blue dirty impolite indecorous indelicate lewd malodorous naughty risqué rough salacious suggestive unbecoming unconventional unequitable ungodly unrighteous unrightful
Antonyms
STRONGEST
acceptable appropriate decent ethical fair good honest just moral proper right suitable
WEAK
correct fitting formal uncorrupt

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"It is illegal and improper because there is no risk of him fleeing or avoiding questioning," he said.

From BBC • Mar. 27, 2026

Other suspected fraud schemes involve enrolling beneficiaries without their consent and improper billing practices.

From MarketWatch • Mar. 24, 2026

FJC director Judge Robin Rosenberg told us “the processes followed” in the development of the manual were “thorough, rigorous, careful, and free from improper influence,” including rounds of comments and external reviews.

From The Wall Street Journal • Mar. 13, 2026

"The Court therefore finds that the subpoenas were issued for an improper purpose and will quash them."

From Barron's • Mar. 13, 2026

“Am I free to return to my home? Shall I be at liberty from the improper meddling of your Committee?”

From "Chains" by Laurie Halse Anderson

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.