Synonyms of unauthorized

unauthorized

adjective

as in improper

without permission; not authorized

an unauthorized use of government vehicles

Unauthorized personnel are not allowed in the building.

Synonyms & Similar Words

• improper
• illicit
• illegal
• unlawful
• inappropriate
• unacceptable
• illegitimate
• prohibited
• unlicensed
• forbidden
• unsuitable
• impermissible
• outlawed
• excluded
• proscribed
• barred
• unbearable
• objectionable
• banned
• taboo
• interdicted
• intolerable
• unsanctioned
• unseemly
• unendurable
• ineffable
• unmentionable
• refused
• rejected
• verboten
• disallowed
• tabu
• prevented
• revoked
• discouraged
• stopped
• vetoed
• precluded
• disapproved
• suppressed
• blocked
• repressed
• hindered
• obstructed
• shut out
• impeded
• ruled out

Antonyms & Near Antonyms

• appropriate
• legal
• lawful
• legitimate
• permitted
• acceptable
• authorized
• licensed
• certified
• approved
• endorsed
• tolerable
• okay
• accredited
• accepted
• sanctioned
• endurable
• bearable
• allowed
• OK
• warranted
• granted
• mandatory
• promoted
• suitable
• supported
• proper
• required
• commanded
• indorsed
• allowable
• encouraged
• permissible
• condoned
• ordered
• unobjectionable
• permissive
• countenanced
• vouchsafed
• accorded
• tolerated
• brooked
• seemly
• sufferable

Examples of unauthorized in a Sentence

Recent Examples on the Web

Indiana State Police began investigating in June 2023 after accusations of Noel hiring county employees to do work for his personal interests, using a business credit card for private purposes and falsifying documents to help an officer receive unauthorized pension funds, among other things. —Marina Johnson, The Courier-Journal, 15 Oct. 2024

Explore the section Most recently, the California Coastal Commission has repeatedly admonished the company for performing unauthorized work on the pipeline in an attempt to ready the equipment for transporting oil. —Tony Briscoe, Los Angeles Times, 14 Oct. 2024

Here’s the full machine translation: October 10, 2024 Game Freak Inc. Notice and apology regarding the leak of personal information due to unauthorized access Game Freak Inc. —Adi Robertson, The Verge, 14 Oct. 2024

To help with this, Fortune says Boring Tunnel has installed license plate readers that close the gate if an unauthorized vehicle pate is scanned. —Lawrence Hodge / Jalopnik, Quartz, 10 Oct. 2024