unfathomable
adjective
un·fath·om·able
ˌən-ˈfa-t͟hə-mə-bəl 
: not capable of being fathomed:
a
: immeasurable
… the unfathomable darkness of empty space.—
H. G. Wells
H. G. Wells
b
: impossible to comprehend
unfathomable motives/reasons
Examples of unfathomable in a Sentence
His behavior is completely unfathomable.
the unfathomable reaches of space
Recent Examples on the Web
After the magical ending of the second round series, the unfathomable seems poised to happen.
—Troy Renck, Denver Post, 23 May 2026
When the Hawks’ season ended last month, following an unfathomable 51-point loss to the Knicks in Game 6 of the first-round Eastern Conference series, the prevailing notion seemed to be that the Hawks were fatally flawed.
—Lauren Williams, AJC.com, 23 May 2026
Families of the other two victims, Nader Awad and Mansour Kaziha, did not speak, but others at the news conference called them brave heroes whose losses are unfathomable.
—Roxana Popescu, San Diego Union-Tribune, 20 May 2026
In his work, the unfathomable is what most powerfully involves us—some private kernel of feeling that resists interpretation, and always remains out of reach.
—Sebastian Smee, The Atlantic, 16 May 2026
See All Example Sentences for unfathomable
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Troy Renck, Denver Post, 23 May 2026
When the Hawks’ season ended last month, following an unfathomable 51-point loss to the Knicks in Game 6 of the first-round Eastern Conference series, the prevailing notion seemed to be that the Hawks were fatally flawed.
—Lauren Williams, AJC.com, 23 May 2026
Families of the other two victims, Nader Awad and Mansour Kaziha, did not speak, but others at the news conference called them brave heroes whose losses are unfathomable.
—Roxana Popescu, San Diego Union-Tribune, 20 May 2026
In his work, the unfathomable is what most powerfully involves us—some private kernel of feeling that resists interpretation, and always remains out of reach.
—Sebastian Smee, The Atlantic, 16 May 2026
See All Example Sentences for unfathomable
Cite this Entry
“Unfathomable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unfathomable. Accessed 28 May. 2026.
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unfathomable
adjective
un·fath·om·able
ˌən-ˈfat͟h-ə-mə-bəl
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