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WORDNET DICTIONARY

Adjective unfathomed has 1 sense

• unfathomed(s = adj.all) profound, unplumbed, unsounded - situated at or extending to great depth; too deep to have been sounded or plumbed; "the profound depths of the sea"; "the dark unfathomed caves of ocean"; "unplumbed depths of the sea"; "remote and unsounded caverns"

OXFORD DICTIONARY

THESAURUS

unfathomed

able, abysmal, abyssal, bottomless, cavernous, colossal, deep as hell, enigmatic, enormous, fathomless, gaping, immense, incalculable, incognizable, massive, mighty, monstrous, mysterious, plumbless, plunging, prodigious, puzzling, sealed, soundless, strange, tremendous, unapparent, unapprehended, unascertained, unbeknown, uncharted, unclassified, undisclosed, undiscoverable, undiscovered, undivulged, unexplained, unexplored, unexposed, unfamiliar, unfathomable, unheard, unheard-of, unidentified, uninvestigated, unknowable, unknown, unperceived, unplumbed, unrevealed, unsounded, unsuspected, untouched, vast, virgin, without bottom, yawning

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unfathomed

Depth

N depth, deepness, profundity, depression, hollow, pit, shaft, well, crater, gulf, bowels of the earth, botttomless pit, hell, soundings, depth of water, water, draught, submersion, plummet, sound, probe, sounding rod, sounding line, lead, bathymetry, sonar, side-looking sonar, bathometer, deep, deep seated, profound, sunk, buried, submerged, subaqueous, submarine, subterranean, subterraneous, subterrene, underground, bottomless, soundless, fathomless, unfathomed, unfathomable, abysmal, deep as a well, bathycolpian, benthal, benthopelagic, downreaching, yawning, knee deep, ankle deep, beyond one's depth, out of one's depth, over head and ears, mark twine, mark twain.

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