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undifferentiated

adjective

un·​dif·​fer·​en·​ti·​at·​ed ˌən-ˌdi-fə-ˈren(t)-shē-ˌā-təd How to pronounce undifferentiated (audio)
: not divided or able to be divided into different elements, types, etc. : not differentiated
undifferentiated cells
an undifferentiated mass

Examples of undifferentiated 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.
Citizens commune not just with deceased relatives but with the undifferentiated mass of anonymous dead. Dan Piepenbring, Harpers Magazine, 23 Nov. 2025 The citizens of Oz are treated as no more than an undifferentiated crowd of extras, an ignorant and finally disposable monolith. Justin Chang, New Yorker, 20 Nov. 2025 Corms are distinguished from bulbs by their solid, undifferentiated tissue as opposed to the layered scales that characterize bulbs. Joshua Siskin, Oc Register, 25 Oct. 2025 Not surprisingly, most of these ideas were either too vague or too undifferentiated to be interesting. Dev Patnaik, Forbes.com, 15 Sep. 2025 See All Example Sentences for undifferentiated

Word History

First Known Use

1862, in the meaning defined above

Time Traveler
The first known use of undifferentiated was in 1862

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Cite this Entry

“Undifferentiated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undifferentiated. Accessed 6 Dec. 2025.

Medical Definition

undifferentiated

adjective
un·​dif·​fer·​en·​ti·​at·​ed -ˌdif-ə-ˈren-chē-ˌāt-əd How to pronounce undifferentiated (audio)
: not differentiated
an undifferentiated sarcoma
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