unlicensed

adjective

un·​li·​censed ˌən-ˈlī-sᵊn(t)st How to pronounce unlicensed (audio)
Synonyms of unlicensednext
: not licensed: such as
a
: not authorized or permitted by a license
unlicensed merchandise
an unlicensed firearm
the unlicensed reproduction of books
b
: operating without a license
unlicensed vendors
an unlicensed electrician
unlicensed brokers
unlicensed drivers

Examples of unlicensed in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Some patients have died from organ failure caused by unlicensed stem cell transplantation. Hanna Wickes, Miami Herald, 27 May 2026 My task is to read their unpublished, often unfinished writing—less as a teacher or as an editor than as a cheerfully unlicensed therapist. David O’Neill, New Yorker, 20 May 2026 Records show Square was charged with leaving the scene of an accident causing death and driving while unlicensed causing death. Dejanay Booth-Singleton, CBS News, 20 May 2026 For institutional balance sheets, an unlicensed or nonauditable data feed can be a nonstarter, hindering adoption. Mike Cahill, Forbes.com, 18 May 2026 See All Example Sentences for unlicensed

Word History

First Known Use

1577, in the meaning defined above

Time Traveler
The first known use of unlicensed was in 1577

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Cite this Entry

“Unlicensed.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unlicensed. Accessed 31 May. 2026.

Medical Definition

unlicensed

adjective
un·​li·​censed
variants or chiefly British unlicenced
-ˈlīs-ᵊn(t)st
: not licensed
especially, of a drug : not approved for use by the appropriate regulating authority (as the Food and Drug Administration in the United States)

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