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English definition of “imperceptible”


adjective     /ˌɪm.pəˈsep.tɪ.bl̩/ US  /-pɚˈsep.tə-/
unable to be noticed or felt because of being very slight : She heard a faint , almost imperceptible cry .Indistinct and invisibleExtremely smallSmall imperceptibly     /-bli/ US  /-pɚˈsep.tə-/ adverb Gradually , almost imperceptibly, her condition had worsened .Indistinct and invisible
(Definition of imperceptible adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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