undefined

adjective

un·​de·​fined ˌən-di-ˈfīnd 

: not defined: such as

a

: not clearly or precisely shown, described, or limited

undefined rules

undefined powers

a vague, undefined feeling of dread

… the true outlines of Clinton's foreign policy remain undefined.

—William Greider

b

: not provided with a definition

an undefined dictionary entry

Synonyms

• blear
• bleary
• blurry
• dim
• faint
• foggy
• fuzzy
• gauzy
• hazy
• indefinite
• indistinct
• indistinguishable
• misty
• murky
• nebulous
• obscure
• opaque
• pale
• shadowy
• unclear
• undetermined
• vague

Examples of undefined in a Sentence

plagued by undefined worries that kept her awake at night

Recent Examples on the Web

First streamers, and now anyone addressing an undefined audience. —Kate Lindsay, Vulture, 5 Dec. 2024

But Harris dove into the race fairly undefined, despite being the sitting vice president. —Thomas G. Moukawsher, Newsweek, 7 Nov. 2024

Watch on Deadline Set over seven hallucinatory days, Harvest tells the story of a rural village community with no name, in an undefined time and place, that begins to break at the seams after the arrival of four strangers. —Zac Ntim, Deadline, 4 Nov. 2024

Meanwhile, Carpenter alluded to them having an undefined relationship in a June interview with Rolling Stone. —Raven Brunner, Peoplemag, 18 Aug. 2024

Word History

First Known Use

1611, in the meaning defined above