Synonyms of fathomless
- 1 Syllable
- greek, deep
- 2 Syllables
- puzzling, baffling, cryptic, delphic, unclear, deeper
- 3 Syllables
- downreaching, mystifying, perplexing, mysterious, obscure, opaque
- 4 Syllables
- unknowable, enigmatic, inscrutable, sibylline, ungraspable
- 5 Syllables
- unfathomable, incognizable, impenetrable, inconceivable
- 6 Syllables
- unimaginable, uncomprehensible, unintelligible, incomprehensible