unfathomable

un·fath·om·able

adj \-ˈfa-thə-mə-bəl\

Definition of UNFATHOMABLE

: not capable of being fathomed: a : immeasurable b : impossible to comprehend

Examples of UNFATHOMABLE

1. His behavior is completely unfathomable.
2. <the unfathomable reaches of space>

First Known Use of UNFATHOMABLE

1640

Related to UNFATHOMABLE

Synonyms: bottomless, boundless, endless, fathomless, horizonless, illimitable, immeasurable, immensurable, indefinite, limitless, measureless, unbounded, infinite, unlimited

Antonyms: bounded, circumscribed, confined, definite, finite, limited, restricted

Related Words: abysmal; countless, incalculable, incomputable, inestimable, innumerable, unmeasured; exhaustless, inexhaustible; extensive, far-flung, immense, vast

Near Antonyms: fathomable, measurable; depthless, shallow, superficial

see all synonyms and antonyms

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