Synonyms for

Unauthorized

Verb / ʌˈnɔ:θɜ:ˌaɪzd / Another word for unauthorized — explore alternatives below. For syllable breakdowns and pronunciation, see this word on Syllablesworld.

Definition

Not given official permission or approval; illegal or unlawful.

Synonyms & similar words

unauthorised wildcat authorized unapproved forbidden prohibited illicit unlawful illegitimate noncompliant contraband bootleg underground covert clandestine unofficial unsanctioned unlicensed unpermitted unregulated untaxed unendorsed unaccredited

Synonyms by register

Formal

unsanctioned illicit prohibited unwarranted

Informal

off-limits not allowed bogus unofficial

Literary

unlicensed unwrought

Antonyms

authorized permitted allowed sanctioned approved legal legitimate

Common collocations

  • unauthorized access
  • unauthorized use
  • unauthorized personnel
  • unauthorized transaction
  • unauthorized entry
  • unauthorized distribution
  • unauthorized modification

Word family

noun unauthorization
adjective unauthorized
adverb unauthorizedly

Usage note

Often used in contexts related to security, access, or permissions. It implies a lack of official approval or permission.

Example sentences

  1. The student was caught with unauthorized materials during the test.
  2. It is illegal to make unauthorized copies of movies or music.
  3. The security guard prevented the unauthorized person from entering the building.
  4. The government agency warned against using unauthorized websites for medical information.
  5. The athlete was suspended for taking an unauthorized substance.

Quotes

  • Unauthorized personnel keep out - Sign
  • We do not authorize any person to teach or to criticize the Catholic faith otherwise than in accordance with the method and principles of theology - Pope Pius X
  • You may be sure that the Americans will commit all the stupidities they can think of, plus some that are beyond imagination. - Charles de Gaulle

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