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Showing results for unfathomable. Search instead for unfathomab.
Definitions

unfathomable

[uhn-fath-uh-muh-buhl] / ʌnˈfæð ə mə bəl /
ADJECTIVE
bottomless
Synonyms
STRONGEST
boundless immeasurable infinite
WEAK
abysmal deep eternal soundless unending unmeasured unplumbed
Antonyms
STRONGEST
bounded calculable finite limited measurable
WEAK
believable comprehensible explainable explicable fathomable
ADJECTIVE
hard to believe; difficult to understand
Synonyms
STRONGEST
baffling impenetrable incomprehensible indecipherable inexplicable unknowable
WEAK
abstruse clear as mud deep enigmatic esoteric heavy incognizable obscure profound too deep uncomprehensible ungraspable unintelligible
Antonyms
STRONGEST
clear comprehensible intelligible understandable
WEAK
believable explainable explicable fathomable

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.

Buying a $1 million building — even if you’re sharing it with tenants — may simply feel unfathomable to them.

From MarketWatch • Apr. 3, 2026

She notes that very few people in the audience “realize we are witnessing the exorcism of a powerful, witchy woman who is processing unfathomable loss and shock.”

From Salon • Mar. 24, 2026

I know this all seems unfathomable to you right now.

From The Wall Street Journal • Feb. 6, 2026

It seems unfathomable that the German will not want to upholster his defence and attack, too, though.

From BBC • Jan. 6, 2026

His expression unfathomable, he returned to the party.

From "Harry Potter and the Half-Blood Prince" by J.K. Rowling