Synonyms of nebulous

nebulous

adjective

ˈne-byə-ləs 

1

as in ambiguous

having an often intentionally veiled or uncertain meaning

made nebulous references to some major changes the future may hold

Synonyms & Similar Words

• ambiguous
• cryptic
• obscure
• dark
• vague
• mysterious
• murky
• enigmatic
• mystic
• unclear
• esoteric
• questionable
• opaque
• inscrutable
• uncertain
• equivocal
• arcane
• occult
• deep
• Delphic
• confusing
• elliptical
• fuliginous
• obscurant
• fuzzy
• hazy
• complicated
• weird
• indistinct
• shadowy
• recondite
• double-edged
• undefined
• abstruse
• uncanny
• eerie
• indirect
• indefinite
• difficult
• intangible
• foggy
• cloaked
• misty
• shrouded
• faint
• disguised
• incomprehensible
• clouded
• undetermined
• inexplicable
• muddy
• inexact
• invisible
• complex
• noncommittal
• dim
• unknowable
• indecipherable
• indistinguishable
• masked
• shaded
• cloudy
• puzzling
• obfuscatory
• concealed
• perplexing
• baffling
• impalpable
• inexplicit
• impenetrable
• unanswerable
• confounding
• bewildering
• mystifying
• unfathomable
• sphinxlike
• inappreciable
• obtuse
• beclouded
• circuitous
• shadowlike
• befogged
• roundabout
• bedimmed
• obnubilated

Antonyms & Near Antonyms

• obvious
• clear
• unambiguous
• plain
• certain
• distinct
• unequivocal
• accessible
• understandable
• intelligible
• comprehensible
• evident
• bright
• strong
• legible
• sure
• defined
• knowable
• firm
• direct
• definite
• explicit
• nonambiguous
• pellucid
• fathomable
• tangible
• exact
• straightforward
• determined
• self-evident
• visible
• self-explanatory
• appreciable
• palpable
• unmistakable
• blatant
• patent

2

as in vague

not seen or understood clearly

could just make out the nebulous outline of a fishing shack in the dense fog

Synonyms & Similar Words

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

Antonyms & Near Antonyms

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

Example Sentences

Recent Examples of nebulous

Increasingly, the crux of the debate around AI’s sustainability has been focused on data centers, which make the nebulous concept of AI very concrete with their massive, humming warehouses full of servers and huge energy requirements. — Sasha Luccioni, Time, 3 July 2026

When college senior Sloane pursues a nebulous affair with her mysterious neighbor Ethan, the road to heartbreak ends up functioning as a path to self-discovery. — Nissa Renzo, PEOPLE, 30 June 2026

There are also more nebulous items, including advice to beware of social engineering. — Neil J. Rubenking, PC Magazine, 24 June 2026

Partnership seeks clearer reflection as the intuitive Moon in your 7th House of Partnership opposes nebulous Neptune in your 1st House of Identity, so connection and self-image pull in different directions. — Tarot.com, Sun Sentinel, 22 June 2026

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