unfathomless

English

Etymology

Presumably by confusion of unfathomed (or unfathomable) and fathomless.

Adjective

unfathomless (comparative more unfathomless, superlative most unfathomless)

1. (proscribed) fathomless
   • 1957, Enrique K. Laygo, Masks, page 149:

     I painted myself an admirer of all that was strong: a rocky mountain, an unfathomless abyss, […]