undiscernible
Beyond detection limits
Undiscernible means impossible or very difficult to perceive, detect, or distinguish.
Something undiscernible escapes notice or cannot be made out clearly: The difference between the two samples was undiscernible to the naked eye.
The word functions as a synonym for imperceptible or indistinguishable, though indiscernible is the more common spelling.
Made invisible deliberately
- camouflagedVisually hidden by coloring
- maskedHaving face covered
- veiledConcealed or obscured
- cloakedConcealed or covered
disguised · buried · obscured · shrouded · covert · invisible · undetected · latent
Cannot be seen
- undetectableImpossible to notice
- inaudibleCannot be heard
- unnoticeableNot readily perceived
- intangibleNot physically present
unobservable · insensible · unseen · unheard · untraceable · indistinguishable · subliminal · microscopic
Soft and unclear
- hazyUnclear, indistinct
- out-of-focusLacking sharpness or definition
- smudgedBlurred by contact
- blurryIndistinct, lacking definition
bleary · misty · soft-focus · indistinct · unfocused · smeared · dim · foggy
Puzzling and obscure
- inscrutableImpossible to understand
- mysteriousBeyond easy comprehension
- unfathomableBeyond comprehension or measurement
- incomprehensibleImpossible to understand
arcane · esoteric · abstruse · opaque · impenetrable · baffling · unintelligible · indecipherable
Weak and indistinct
- slightMinor or thin
- imperceptibleCannot be sensed
- delicateEasily broken or harmed
- nuancedHaving fine distinctions
minute · tenuous · fine · elusive · understated · whispered · trace · hint
Unclear and formless
- indefiniteNot precisely determined
- unclearNot easily understood
- amorphousWithout distinct shape
- shapelessLacking distinct structure
formless · unformed · ill-defined · indeterminate · featureless · muddled · inchoate · cloudy
concealed
Made invisible deliberately
- camouflagedVisually hidden by coloring
- maskedHaving face covered
- veiledConcealed or obscured
cloaked · disguised · buried · obscured · shrouded · covert · invisible · undetected · latent · underlying
invisible
Cannot be seen
- undetectableImpossible to notice
- inaudibleCannot be heard
- unnoticeableNot readily perceived
intangible · unobservable · insensible · unseen · unheard · untraceable · indistinguishable · subliminal · microscopic · infinitesimal
fuzzy
Soft and unclear
- hazyUnclear, indistinct
- out-of-focusLacking sharpness or definition
- smudgedBlurred by contact
blurry · bleary · misty · soft-focus · indistinct · unfocused · smeared · dim · foggy · grainy
enigmatic
Puzzling and obscure
- inscrutableImpossible to understand
- mysteriousBeyond easy comprehension
- unfathomableBeyond comprehension or measurement
incomprehensible · arcane · esoteric · abstruse · opaque · impenetrable · baffling · unintelligible · indecipherable · puzzling
faint
Weak and indistinct
- slightMinor or thin
- imperceptibleCannot be sensed
- delicateEasily broken or harmed
nuanced · minute · tenuous · fine · elusive · understated · whispered · trace · hint · negligible
nebulous
Unclear and formless
- indefiniteNot precisely determined
- unclearNot easily understood
- amorphousWithout distinct shape
shapeless · formless · unformed · ill-defined · indeterminate · featureless · muddled · inchoate · cloudy · murky
undiscerniblediscernible
Able to be noticed
perceptible · detectable · visible · perceivable · noticeable
undiscernibledistinguishable
Capable of being identified separately
discernible · recognizable · differentiable · identifiable · distinct
discern, discerning, discernible, discernment, indiscernible, undiscerning, discernibly, discerner, undiscerned