Synonyms of undefined

undefined

adjective

ˌən-di-ˈfīnd 

as in vague

not seen or understood clearly

plagued by undefined worries that kept her awake at night

Synonyms & Similar Words

• vague
• faint
• hazy
• undetermined
• unclear
• indistinct
• nebulous
• indefinite
• fuzzy
• pale
• obscure
• shadowy
• opaque
• blurry
• indistinguishable
• murky
• dark
• foggy
• misty
• dim
• bleary
• invisible
• blear
• intangible
• dusky
• gauzy
• mysterious
• inexplicable
• gloomy
• incomprehensible
• impalpable
• puzzling
• inappreciable
• indiscernible
• indecipherable
• hieroglyphic
• obfuscatory
• hieroglyphical

Antonyms & Near Antonyms

• clear
• definite
• distinct
• obvious
• certain
• evident
• plain
• bright
• pellucid
• strong
• sure
• firm

Example Sentences

Recent Examples of undefined

The undefined goals of the tit-for-tat escalation with some of the United States’ most important partners has left markets reeling and businesses baffled as to how this ends. —Philip Elliott, TIME, 5 Mar. 2025

What To Know Reuters, Bloomberg and CNN were among news outlets which reported that Trump had ordered the suspension of all military aid supplies to Kyiv pending an undefined Ukrainian commitment to a peaceful settlement of the war. —Thomas G. Moukawsher, Newsweek, 4 Mar. 2025

And the undefined areas of the translation are what make Twin Peaks, both versions, works of art as opposed to mere escapism. —Matt Zoller Seitz, Vulture, 16 Jan. 2025

Burroughs, Brooks and Henry each caught just one pass last season for Wisconsin, so their roles are undefined. —Jesse Temple, The Athletic, 3 Jan. 2025