unfathomable
Impossible to grasp
Unfathomable means impossible to understand or measure.
A fathom is a unit of depth (six feet), so unfathomable originally described water too deep to sound.
The figurative sense now dominates: Her motives remained unfathomable.
Unfathomable mysteries, grief, or complexity resist comprehension—they're beyond the reach of ordinary understanding.
Something hard to fathom
- inscrutableImpossible to understand
- crypticObscure in meaning
- arcaneUnderstood by few
- unknowableImpossible to understand
inexplicable · impenetrable · occult · hidden · veiled · secretive · sphinx · oracle
Immeasurably profound depth
- chasmDeep, steep-sided gap
- bottomlessHaving no base
- plungeSudden steep descent
- voidWithout legal effect
deep · trench · ocean · benthic · plumb · sounding · soundless · depthless
Without any boundaries
- infiniteHaving no bounds
- limitlessWithout any boundaries
- immeasurableBeyond any quantification
- measurelessIncapable of being quantified
endless · cosmic · incalculable · astronomical · immense · expansive · unbounded · interminable
Extremely complex and winding
- convolutedExcessively complex or twisted
- intricateElaborately detailed, many parts
- byzantineDauntingly intricate and devious
- tangledTwisted confusedly together
knotty · layered · multifaceted · dense · involved · tortuous · elaborate · impenetrable
Impossible to understand
- bewilderingCausing utter confusion
- confoundingCausing surprise or confusion
- perplexingCausing mental confusion
- puzzlingCausing confusion or bewilderment
mind-boggling · inconceivable · ungraspable · unintelligible · indecipherable · unimaginable · unexplainable · stupefying
Intense sorrow from loss
- sorrowDeep emotional distress
- lossBeing without something
- despairTotal absence of hope
- lonelinessState of lacking companions
anguish · heartbreak · suffering · sadness · pain · mourning · desolation · melancholy
enigma
Something hard to fathom
- inscrutableImpossible to understand
- crypticObscure in meaning
- arcaneUnderstood by few
unknowable · inexplicable · impenetrable · occult · hidden · veiled · secretive · sphinx · oracle · mystical
abyss
Immeasurably profound depth
- chasmDeep, steep-sided gap
- bottomlessHaving no base
- plungeSudden steep descent
void · deep · trench · ocean · benthic · plumb · sounding · soundless · depthless · yawning
boundless
Without any boundaries
- infiniteHaving no bounds
- limitlessWithout any boundaries
- immeasurableBeyond any quantification
measureless · endless · cosmic · incalculable · astronomical · immense · expansive · unbounded · interminable · illimitable
labyrinthine
Extremely complex and winding
- convolutedExcessively complex or twisted
- intricateElaborately detailed, many parts
- byzantineDauntingly intricate and devious
tangled · knotty · layered · multifaceted · dense · involved · tortuous · elaborate · impenetrable · serpentine
baffling
Impossible to understand
- bewilderingCausing utter confusion
- confoundingCausing surprise or confusion
- perplexingCausing mental confusion
puzzling · mind-boggling · inconceivable · ungraspable · unintelligible · indecipherable · unimaginable · unexplainable · stupefying · unfollowable
grief
Intense sorrow from loss
loneliness · anguish · heartbreak · suffering · sadness · pain · mourning · desolation · melancholy · devastation
- Beyond Measureimmeasurable, incalculable, boundless, limitless, infinite
- awe-inspiringawe-inspiring, awesome, breathtaking, jaw-dropping, magnificent
- depthsabyss, deep, bottom, chasm, depth
- Extreme Adjectivesastronomical, boundless, colossal, countless, endless
- Scalevast, immense, huge, enormous, massive
- beyond reachunattainable, unreachable, inaccessible, out of bounds, elusive
unfathomablecomprehensible
Able to be understood
understandable · fathomable · intelligible · explicable · comprehendible
unfathomableshallow
Without much depth
measurable · depthless · finite · plumbable · bounded
unfathomablesimple
Free of complexity
basic · straightforward · uncomplicated · elementary · orderly