as in improper
without permission; not authorized
an unauthorized use of government vehicles Unauthorized personnel are not allowed in the building.
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Recent Examples of unauthorized
In 1676 Bacon organized unauthorized military expeditions against Native American communities.
—
Tracy Grant,
Encyclopedia Britannica,
24 June 2026
While those measures have support from liberals who are skeptical of Big Tech companies and from conservatives worried about the effects of social media use on minors, free-speech advocates have warned that the provisions would create opportunities for unauthorized surveillance or for censorship.
—
Victoria Baeza Garcia,
The Washington Examiner,
23 June 2026
An unauthorized discount here, a shift slightly overstaffed there, each one seems minor on its own.
—
Serenity Gibbons,
Forbes.com,
23 June 2026
Residents of towns with data centers have reported contaminated water, low water pressure, and unauthorized siphoning, putting one of life’s essentials under threat.
—
Jacqueline Munis,
Fortune,
22 June 2026
See All Example Sentences for unauthorized
Tracy Grant,
Encyclopedia Britannica,
24 June 2026
While those measures have support from liberals who are skeptical of Big Tech companies and from conservatives worried about the effects of social media use on minors, free-speech advocates have warned that the provisions would create opportunities for unauthorized surveillance or for censorship.
—
Victoria Baeza Garcia,
The Washington Examiner,
23 June 2026
An unauthorized discount here, a shift slightly overstaffed there, each one seems minor on its own.
—
Serenity Gibbons,
Forbes.com,
23 June 2026
Residents of towns with data centers have reported contaminated water, low water pressure, and unauthorized siphoning, putting one of life’s essentials under threat.
—
Jacqueline Munis,
Fortune,
22 June 2026
See All Example Sentences for unauthorized
Recent Examples of Synonyms for unauthorized
Adjective
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While the expiration of the enhanced ACA subsidies at the end of 2025 made insurance more expensive for millions of consumers, the HHS assistant secretary for planning and evaluation report cited efforts to crack down on improper signups.
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The agency is also asking visitors to the World Cup game or Fan Fest to report any unsafe or improper drone use to the FBI tipline at 1-800-CALL-FBI.
Adjective
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So far this year, 17 tons of illicit drugs, mostly cocaine, have been seized in the Pacific region – more than three times the total across the whole of last year, according to the Australian Federal Police.
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Australian Federal Police via AP Six others allegedly involved in the importation of the cocaine had previously been arrested and charged with offenses related to illicit drugs possession, police said.
Adjective
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Louisville police say anything that goes into the air or explodes is illegal for average citizens.
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Official fireworks shows took place over the city, and illegal pyrotechnics lit up the sky everywhere in between.
Adjective
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Jazzlyn Johnson, a spokesperson for Johnson, said in an email that Sanchez-Munoz had been charged with one count of second-degree felony murder, five counts of unlawful use of a weapon and five counts of armed criminal action.
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The policies Goode violated include unlawful harassment discrimination policy, professional conduct, code of conduct and mobile data access.
Adjective
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Murdaugh’s attorneys appealed the convictions, saying the trial was tainted by the county clerk Becky Hill’s inappropriate comments to jurors implying his guilt.
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Live streams and other unfiltered media can expose kids to risky or inappropriate content, so adult guidance is key.
Adjective
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If scar tissue is too severe, if prior surgeries have left the blood supply compromised, or if a patient's goals aren't achievable without unacceptable risk, proceeding could cause irreversible damage.
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Yes, Stokes’ late night out, in the context of what went on before, was unacceptable.
Adjective
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That difference suggests that the government sees this extension of patent rights as an illegitimate way for a company to exclude other companies from competing.
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Some fraudsters run an illegitimate DME company and get a doctor to prescribe the equipment.
Cite this Entry
“Unauthorized.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unauthorized. Accessed 1 Jul. 2026.
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