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

Example Sentences

Recent Examples on the Web That generational power is now waning, along with the notion that movies — as distinguishable from the undifferentiated wash of visual storytelling that now pervades nearly every waking hour on screens as wide as IMAX and as tiny as an Apple watch — could ever matter that much again. Ann Hornaday, Washington Post, 9 Mar. 2023 Accordingly, poor financial performance and store closings were overwhelmingly concentrated among undifferentiated retailers stuck in the middle (think JC Penney, Macy’s, et al). Steve Dennis, Forbes, 25 Jan. 2023 Standing out in a crowded and sometimes undifferentiated group requires that technology professionals develop insights into emerging technologies that could mean the difference between success or failure. Forrester, Forbes, 17 Mar. 2023 Visually the film is pretty but also pretty lifeless, with undifferentiated lighting for interiors as well as exteriors. Michael Phillips, Chicago Tribune, 13 Feb. 2023 Instead, undifferentiated emotion runs together, anchored by a boy who’s more symbol than person. Daniel D'addario, Variety, 30 Jan. 2023 Fleur Pond, Dry Cypress Bayou, Tom Loor Pass, Skipjack Bay: all have become undifferentiated, unlabeled expanses of open ocean. Cheri Lucas Rowlands, Longreads, 28 July 2022 These are the compounds added to stem cells in culture that keep them undifferentiated stem cells. Anna Funk, Discover Magazine, 5 Dec. 2018 For small companies, including early-stage, commoditized or undifferentiated products and solutions, new revenue and booked revenue dominate revenue streams. Milind Katti, Forbes, 26 Jan. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'undifferentiated.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1862, in the meaning defined above

Time Traveler
The first known use of undifferentiated was in 1862

Dictionary Entries Near undifferentiated

Cite this Entry

“Undifferentiated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undifferentiated. Accessed 29 May. 2023.

Medical Definition


un·​dif·​fer·​en·​ti·​at·​ed -ˌdif-ə-ˈren-chē-ˌāt-əd How to pronounce undifferentiated (audio)
: not differentiated
an undifferentiated sarcoma
Last Updated: - Updated example sentences
Love words? Need even more definitions?

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