undifferentiated

adjective

un·​dif·​fer·​en·​ti·​at·​ed ˌən-ˌdi-fə-ˈren(t)-shē-ˌā-təd 

: 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

The thesis maps onto a broader pattern in retail’s luxury-affordability divide: Brands that deliver emotional or experiential value are outperforming undifferentiated ones, as consumers in every bracket make increasingly selective choices about where to splurge. —Nick Lichtenberg, Fortune, 29 Apr. 2026

The other, the endosperm, is an undifferentiated mass of cells whose fate is to feed its sibling and die in the process. —Literary Hub, 25 Mar. 2026

That behavior has squeezed the middle, leaving undifferentiated regional supermarkets struggling to stand out. —Ana Gutierrez, Austin American Statesman, 13 Jan. 2026

Citizens commune not just with deceased relatives but with the undifferentiated mass of anonymous dead. —Dan Piepenbring, Harpers Magazine, 30 Dec. 2025

Word History

First Known Use

1862, in the meaning defined above

Rhymes for undifferentiated

• ameliorated
• decontaminated
• deoxygenated
• deteriorated
• differentiated
• disarticulated
• excommunicated
• incapacitated
• individuated
• misappropriated
• monounsaturated
• multinucleated

Medical Definition

undifferentiated

adjective

un·​dif·​fer·​en·​ti·​at·​ed -ˌdif-ə-ˈren-chē-ˌāt-əd 

: not differentiated

an undifferentiated sarcoma