English adjective: imperceptible | |||
1. | imperceptible impossible or difficult to perceive by the mind or senses | ||
Samples | An imperceptible drop in temperature. An imperceptible nod. Color is unperceivable to the touch. | ||
Synonyms | unperceivable | ||
Similar | impalpable, incognizable, incognoscible, indiscernible, insensible, subliminal, undetectable, unobservable | ||
See also | impalpable, inaudible, invisible, unhearable, unseeable | ||
Antonyms | perceptible | ||