Synonyms and Antonyms of unfathomable
1 being or seeming to be without limits <the unfathomable reaches of space> Synonyms bottomless, boundless, endless, fathomless, horizonless, illimitable, immeasurable, immensurable, indefinite, limitless, measureless, unbounded, infinite, unlimitedRelated Words abysmal; countless, incalculable, incomputable, inestimable, innumerable, unmeasured; exhaustless, inexhaustible; extensive, far-flung, immense, vastNear Antonyms fathomable, measurable; depthless, shallow, superficialAntonyms bounded, circumscribed, confined, definite, finite, limited, restricted
2 impossible to understand <for some unfathomable reason the family decided to venture out into the blizzard> Synonyms impenetrable, incomprehensible, ungraspable, unintelligibleRelated Words abstruse, enigmatic (also enigmatical), esoteric, indecipherable, inscrutable, recondite, unsearchable; cryptic, darkling, deep, mysterious, mystic, oblique, obscure, occult, uncanny; unanswerable, unknowable; baffling, bewildering, confounding, confusing, mystifying, perplexing, puzzling; inconceivable, unimaginable, unthinkableNear Antonyms basic, elemental, elementary, essential, fundamental, rudimentary, underlying; easy, simple; coherent, connected, ordered, orderly, organized, systematic, systematized; clear, cogent, compelling, convincing, lucid, pellucid, perspicuous, plain, straightforwardAntonyms fathomable, intelligible, understandable
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