unbelievable

[uhn-bi-lee-vuh-buhl] / ˌʌn bɪˈli və bəl /

ADJECTIVE

beyond the imagination

Synonyms

STRONGEST

astonishing implausible impossible improbable inconceivable incredible outlandish preposterous too much unimaginable unthinkable

WEAK

beyond belief cockamamie cockeyed doubtful dubious far-fetched fishy flaky flimsy for the birds full of holes harebrained incogitable kooky lamebrained open to doubt past belief phony questionable reaching scatterbrained screwy staggering suspect thick thin unconvincing unsubstantial weak won't hold water won't wash

Antonyms

STRONGEST

believable conceivable credible imaginable likely plausible possible reasonable tenable

WEAK

real

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Defensively, they held Texas star Madison Booker to three baskets off 23 attempts, including an unbelievable 17 straight misses at one point.

From Los Angeles Times • Apr. 4, 2026

“It’s a lot of knowledge workers doing similar tasks with data, an unbelievable distribution network” that reaches institutional investors around the globe.

From Barron's • Apr. 3, 2026

A frustrated Russell, who finished fourth behind Piastri and Ferrari's Charles Leclerc, said over the radio "unbelievable" as he realised Antonelli would beat him for the second consecutive race.

From BBC • Mar. 29, 2026

There’s “tremendous, unbelievable uncertainty. That’s where we head from here,” he said.

From MarketWatch • Mar. 26, 2026

“Stimson told me that he wanted me to know about an immense project that was underway—-a project looking to the development of a new explosive of almost unbelievable power,” recalled Truman.

From "Bomb" by Steve Sheinkin

unbelievable

Example Sentences

Related Words