Synonyms of improperly

improperly

adverb

as in incorrectly

in a mistaken or inappropriate way

the manufacturer's warranty is no longer valid if the appliance is used improperly

Synonyms & Similar Words

• incorrectly
• mistakenly
• erroneously
• inappropriately
• inaccurately
• wrongly
• unsuitably
• faultily
• inaptly
• inadequately
• insufficiently
• imperfectly
• misguidedly
• unwisely
• extraneously
• pointlessly
• irrelevantly
• unsatisfactorily
• senselessly
• undesirably
• meaninglessly
• amiss
• fallibly
• foolishly

Antonyms & Near Antonyms

• properly
• correctly
• appropriately
• well
• rightly
• suitably
• right
• aptly
• perfectly
• fittingly
• adequately
• sufficiently
• infallibly
• meaningfully
• sensibly
• satisfactorily
• pertinently
• acceptably
• wisely
• prudently
• relevantly
• germanely
• sagely

Example Sentences

Recent Examples of improperly

The White House alleged that Moonshot improperly used Nvidia chips and Anthropic’s Fable model to create Kimi K3, whose advanced capabilities caused a US tech selloff last week reminiscent of the DeepSeek shock. — Brendan Ruberry, semafor.com, 22 July 2026

The letter also said the Department of Justice, under Blanche's leadership, improperly released files including the names and personal identifying information of victims, while allegedly failing to investigate Epstein's associates. — Peter Charalambous, ABC News, 21 July 2026

Yee accused Horne of overstepping by improperly denying parents' purchases. — Arizona Republic, AZCentral.com, 21 July 2026

The deputies responded to the scene in personal work trucks rather than the department’s bomb truck and Osborn improperly examined the grenade and falsely reported it inert, according to the complaint. — Andrew Khouri, Los Angeles Times, 19 July 2026

In 2020, the California Supreme Court overturned the death sentence, finding that the jury had been improperly screened for bias against capital punishment. — Declan Gallagher, Entertainment Weekly, 18 July 2026

Clothes and linens stored improperly can react with the acids in cardboard boxes, tissue paper, or wooden drawers or shelves and turn yellow. — Mary Marlowe Leverette, Southern Living, 18 July 2026

Letter details allegations against Martinez Dupree’s letter also alleges Martinez improperly handled several court hearings involving criminal defendants. — Ben Wheeler, Kansas City Star, 17 July 2026

After Medicaid officials improperly shared data about millions of people in January with immigration officials, ICE then shared that data with the data analytics firm Palantir, according to new court filings. — Jude Joffe-Block, NPR, 17 July 2026