definitions

imperceptible

[ im-per-sep-tuh-buhl ]
/ ˌɪm pərˈsɛp tə bəl /
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SEE MORE SYNONYMS FOR imperceptible ON THESAURUS.COM

adjective

very slight, gradual, or subtle: the imperceptible slope of the road.
not perceptible; not perceived by or affecting the senses.

noun

something not capable of being perceived by the senses: metaphysical speculation about imperceptibles.

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RELATED WORDS

insignificant, gradual, indistinguishable, microscopic, invisible, subtle, inaudible, undetectable, ephemeral, evanescent, fine, impalpable, inconspicuous, indiscernible, indistinct, infinitesimal, insensible, minute, momentary, shadowy

Nearby words

imper., imperatival, imperative, imperator, imperatriz, imperceptible, imperception, imperceptive, impercipient, imperf., imperfect

Origin of imperceptible

From the Medieval Latin word imperceptibilis, dating back to 1520–30. See im-2, perceptible

Related forms

im·per·cep·ti·bil·i·ty, im·per·cep·ti·ble·ness, nounim·per·cep·ti·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for imperceptible

British Dictionary definitions for imperceptible

imperceptible

/ (ˌɪmpəˈsɛptɪbəl) /

adjective

too slight, subtle, gradual, etc, to be perceived

Derived Forms

imperceptibility or imperceptibleness, nounimperceptibly, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012