Synonyms of indefinite

indefinite

adjective

(ˌ)in-ˈde-fə-nət 

1

as in infinite

being or seeming to be without limits

the indefinite vastness of the frozen tundra

Synonyms & Similar Words

• infinite
• endless
• unlimited
• limitless
• vast
• boundless
• immeasurable
• illimitable
• measureless
• unbounded
• fathomless
• unfathomable
• horizonless
• extensive
• immense
• immensurable
• bottomless
• innumerable
• incalculable
• inexhaustible
• countless
• unmeasured
• inestimable
• abysmal
• incomputable
• exhaustless
• far-flung

Antonyms & Near Antonyms

• limited
• definite
• finite
• confined
• restricted
• circumscribed
• bounded
• measurable
• superficial
• shallow
• fathomable
• depthless

2

as in vague

not expressed in precise terms

an indefinite longing for something new and exciting in her life

Synonyms & Similar Words

• vague
• unclear
• ambiguous
• fuzzy
• cryptic
• inexplicit
• confusing
• obscure
• enigmatic
• indeterminate
• nebulous
• uncertain
• undefined
• unintelligible
• muzzy
• equivocal
• indistinct
• undetermined
• hazy
• murky
• faint
• blurry
• inexplicable
• mysterious
• dim
• dark
• foggy
• misty
• undefinable
• indistinguishable
• inscrutable
• perplexing
• bleary
• baffling
• puzzling
• unfathomable
• woozy
• confounding
• gauzy
• bewildering
• mystifying
• obfuscatory

Antonyms & Near Antonyms

• definite
• specific
• explicit
• clear
• direct
• open
• straight
• obvious
• frank
• unambiguous
• unequivocal
• outspoken
• straightforward
• honest
• plain
• candid
• forthright
• understandable
• unguarded
• distinct
• intelligible
• comprehensible
• defined
• openhearted
• plainspoken
• unmistakable
• foursquare
• blatant
• patent
• fathomable
• well-defined

3

as in faint

not seen or understood clearly

through the dense fog we could just barely discern the indefinite form of another boat

Synonyms & Similar Words

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

Antonyms & Near Antonyms

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

Example Sentences

Recent Examples of indefinite

California Highway Patrol officers closed Bouquet Canyon Road at Vasquez Canyon Road for an indefinite amount of time as the fire continued to burn. — Dean Fioresi, CBS News, 6 Oct. 2026

In broad terms, an indefinite employment relationship is presumed to be terminable at the will of either party. — William Jones, Sacbee.com, 2 Oct. 2026

But that arrangement became effectively indefinite, with successive heads of Tigray’s interim administration appointed by Abiy. — Alemayehu Fentaw Weldemariam, The Conversation, 29 Sep. 2026

Spain’s government has pledged to announce housing measures Tuesday, as protesters call for indefinite rental contracts and an end to evictions when no alternative housing is available. — Alicia León, Los Angeles Times, 27 Sep. 2026