un·​au·​tho·​rized | \ ˌən-ˈȯ-thə-ˌrīzd How to pronounce unauthorized (audio) \

Definition of unauthorized

: not authorized : without authority or permission an unauthorized biography unauthorized communications was unauthorized to act for her husband

Examples of unauthorized in a Sentence

Recent Examples on the Web

In particular, Goldstein cautions the public about the risks of using unauthorized stem cell therapies. San Diego Union-Tribune, "Biotech notebook: Public service on stem cell science," 6 July 2019 Federal authorities said the scheme involved using the credit-card information stolen by the skimmers to make unauthorized ATM withdrawals and money-order purchases. Andy Nguyen, latimes.com, "Burbank and Glendale men charged in East Coast card-skimming scheme," 5 July 2019 Robert Levinson, a former FBI agent on an unauthorized mission for the CIA, disappeared on Kish Island in March 2007. Jon Gambrell, BostonGlobe.com, "British singer Joss Stone says she was deported from Iran," 4 July 2019 Wednesday, June 26 200 block Morrene: The reporting party believes the suspect has been making unauthorized withdrawals from their 90-year-old mother’s account. Rachel Spacek, The Mercury News, "Campbell crime report for the week of July 12," 3 July 2019 Fraud, Ford Road: A resident reported July 1 there were four unauthorized charges on his credit card made at locations in Euclid and Cleveland. cleveland.com, "Used condom found on girl’s vehicle: Highland Heights Police Blotter," 3 July 2019 Three years later, in 1987, he was caught up in an uproar over heavy losses resulting from a trader’s unauthorized dealings in high-risk securities. James R. Hagerty, WSJ, "Jerome P. Kenney Led Merrill Lynch’s Push Into Investment Banking," 28 June 2019 Department spokesman Stephen Young told AL.com on Saturday that there have been several incidents of people this week being pulled over in their vehicles or knocking on doors at homes by unauthorized deputies. Paul Gattis | Pgattis@al.com, al.com, "Limestone sheriff warning residents about fake deputies," 15 June 2019 Most of those who have contacted her have actual fund-raising needs but have been scammed by third parties—users who set up unauthorized campaigns in other people’s names and then make off with the money. Nathan Heller, The New Yorker, "The Perverse Logic of GoFundMe Health Care," 24 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unauthorized.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of unauthorized

1597, in the meaning defined above

Keep scrolling for more

Learn More about unauthorized

Statistics for unauthorized

Last Updated

11 Jul 2019

Look-up Popularity

Time Traveler for unauthorized

The first known use of unauthorized was in 1597

See more words from the same year

Keep scrolling for more

More Definitions for unauthorized



English Language Learners Definition of unauthorized

: without permission : not authorized

Keep scrolling for more

More from Merriam-Webster on unauthorized

Thesaurus: All synonyms and antonyms for unauthorized

Spanish Central: Translation of unauthorized

Nglish: Translation of unauthorized for Spanish Speakers

Comments on unauthorized

What made you want to look up unauthorized? Please tell us where you read or heard it (including the quote, if possible).


something desired as essential

Get Word of the Day daily email!

Test Your Vocabulary

What's that Smell?! Quiz

  • wide eyed dog smelling rose
  • Someone who is hircine smells like a:
Name That Thing

Test your visual vocabulary with our 10-question challenge!

Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!