unfathom

U1N1F4A1T1H4O1M3

verb

to come to comprehend; demystify.

Scrabble 16

Meanings

verbunfathom (third-person singular simple present unfathoms, present participle unfathoming, simple past and past participle unfathomed)

present singular third person unfathoms · participle present unfathoming · participle past unfathomed · past unfathomed

  1. transitiveto come to comprehend; demystify.

    The King smells danger and will ship Hamlet off to England; Polonius wants to try one last time to unfathom the prince.

    1992, Vincent Crapanzano, Hermes' Dilemma and Hamlet's Desire
    5 more examples

    […] if the anatomists and physicians find it beyond their penetration to unfathom the mysterious depths in the texture, generation, growth, and operations, of the human body; […]

    1823, M. Aikin, David Hughson, Memoirs of Religious Impostors from the Seventh to the Nineteenth Century

    De Vortimer started up, and drawing his sword “By heavens,” said he, “tell me which of you have done this, or I will tear the secret from your hearts! This is some base plot, which I will unfathom ere you leave the chamber.”

    1845, Love and Crime; or the Mystery of the Convent, page 66

    “Scientific ” breeding is a subject worthy of much discussion, and one that has long engaged my closest attention. Happy should be the man able to unfathom its many mysteries.

    1891, Richard Woods, A Practical Guide to Successful Pigeon Culture, page 41

    A body in the forward zone, buried or unburied, is Each night freshly degraded like traitor-corpse, where his heavies flog and violate; each day unfathoms yesterdays unkindness; dung-making Holy Ghost temples.

    1979, Thomas Dilworth, The Liturgical Parenthesis of David Jones, page 12

    A voiceover at our end warned that we might find it 'a bit of a mystery to unfathom what's going on'. But really it was not all that hard to unfathom. Even when you couldn't follow the American commentators you could tell they were talking sense.

    2017, Clive James, Clive James On Television

    Synonyms: fathom, unravel

Synonyms & antonyms

verbto come to comprehend; demystify.

Origin

From un- + fathom, possibly created by analogy with untangle, unravel, etc.

Full word history & related roots →
Cite this entry
APA

unfathom. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/unfathom

MLA

“unfathom.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/unfathom. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “unfathom,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/unfathom.

Source: unfathom on Wiktionary, CC BY-SA 4.0.