Definition of Unfathomable

1. Adjective. Of depth; not capable of being sounded or measured.

Also: Deep
Similar to: Unsoundable
Antonyms: Fathomable

2. Adjective. Resembling an abyss in depth; so deep as to be unmeasurable. "The abyssal depths of the ocean"
Exact synonyms: Abysmal, Abyssal
Similar to: Deep
Derivative terms: Abysm, Abyss

3. Adjective. Impossible to come to understand.

Definition of Unfathomable

1. Adjective. impossible to fathom or understand; incomprehensible ¹

2. Adjective. difficult to penetrate. ¹

¹ Source: wiktionary.com

Definition of Unfathomable

1. fathomable [adj] - See also: fathomable

Lexicographical Neighbors of Unfathomable

unfashioned
unfasten
unfastenable
unfastened
unfastener
unfastening
unfastens
unfastidious
unfastidiously
unfastidiousness
unfated
unfateful
unfathered
unfatherliness
unfatherly
unfathomable (current term)
unfathomably
unfathomed
unfattened
unfattening
unfaultable
unfaulty
unfavor'd
unfavorability
unfavorable
unfavorable judgment
unfavorable position
unfavorableness
unfavorably
unfavored

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