Synonyms of imperceptible
- 1. imperceptible (vs. perceptible), unperceivable, impalpable, incognizable, incognoscible, indiscernible, insensible, undetectable, subliminal, unobservable, impalpable, inaudible#1, unhearable, invisible#1, unseeable
- usage: impossible or difficult to perceive by the mind or senses; "an imperceptible drop in temperature"; "an imperceptible nod"; "color is unperceivable to the touch"
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Definition and meaning of imperceptible (Dictionary)