fathomless

Word parts

fathom + -less

Adjective

Positive fathomless

Comparative more fathomless

Superlative most fathomless

1. If something is fathomless, it is very deep.
   • Synonym: bottomless
2. (by extension) If something is fathomless, it cannot be understood.
   • Synonyms: impenetrable, incomprehensible and inscrutable