Synonyms of unimaginable

unimaginable

adjective

ˌən-ə-ˈmaj-nə-bəl

as in incredible

too extraordinary or improbable to believe

a nearly unimaginable string of coincidences

Synonyms & Similar Words

• incredible
• incredulous
• unlikely
• impossible
• inconceivable
• unthinkable
• unbelievable
• ridiculous
• absurd
• implausible
• unconceivable
• unreasonable
• doubtful
• questionable
• unconvincing
• fantastic
• full of it
• silly
• dubious
• uncompelling
• debatable
• hopeless
• suspicious
• suspect
• shaky
• disputable
• fishy
• ludicrous
• far-fetched
• flimsy
• laughable
• comical
• untenable
• outlandish
• farcical
• preposterous
• dubitable
• indefensible
• dodgy
• insupportable
• doubtable
• risible

Antonyms & Near Antonyms

• conceivable
• possible
• imaginable
• plausible
• thinkable
• convincing
• credible
• believable
• probable
• creditable
• likely
• reasonable
• supposable
• cogitable
• certain
• undeniable
• unquestionable
• indisputable
• sure
• undoubted
• incontestable
• indubitable
• questionless

Example Sentences

Recent Examples of unimaginable

But what ultimately saves the film is Hathaway's remarkable restraint in conveying Kym's deep pain and remorse over an unimaginable family tragedy. — Patrick Ryan, USA Today, 15 Aug. 2026

After the fall of the Soviet Union in 1991, Republicans took a victory lap, rightly noting that the Soviet collapse was unimaginable when President Ronald Reagan first took office. — Tom Nichols, The Atlantic, 14 Aug. 2026

Five 17-year-old friends were killed when their vehicle plunged off a cliff and down a steep Colorado hillside, leaving their families and community grappling with an unimaginable loss just as a new school year begins. — Stepheny Price, FOXNews.com, 12 Aug. 2026

At its center are the unimaginable deaths of three young children and a mother whose mental state has become the subject of intense legal, medical, and public scrutiny. — Jamie Maguire, STAT, 12 Aug. 2026