im·​per·​cep·​ti·​ble | \ ˌim-pər-ˈsep-tə-bəl How to pronounce imperceptible (audio) \

Definition of imperceptible

: not perceptible by a sense or by the mind : extremely slight, gradual, or subtle imperceptible differences

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Other Words from imperceptible

imperceptibly \ ˌim-​pər-​ˈsep-​tə-​blē How to pronounce imperceptible (audio) \ adverb

Examples of imperceptible in a Sentence

These changes will be imperceptible to most people. a slight difference in hue between the two glasses that's imperceptible unless they're placed side by side
Recent Examples on the Web The difference between a second and a decade should be imperceptible with the correct mind-set. Ronald Metellus, The New Yorker, "Biden’s Eightfold Path to Citizenship," 26 Mar. 2021 Yeun captures his simmering anger and frustration in these slight, but not imperceptible, choices. Shirley Li, The Atlantic, "The Invisible Stars of Asian Movies," 3 Mar. 2021 The difference is imperceptible to the naked eye but that’s how much more time, on average, Mahomes takes than Brady to throw the ball. New York Times, "Tom Brady vs. Patrick Mahomes: A Battle of the Ages," 5 Feb. 2021 For familiar pairs, such as the moon and Earth, such energy loss is imperceptible even on timescales of billions of years. Davide Castelvecchi, Scientific American, "The Black Hole Collision That Reshaped Physics," 24 Mar. 2016 Fracastoro believed that diseases were caused by imperceptible seedlike entities (seminaria) which could multiply rapidly, propagate quickly, and were unique to each disease. Ewan Morgan, Scientific American, "The Physician Who Presaged the Germ Theory of Disease Nearly 500 Years Ago," 22 Jan. 2021 The almost imperceptible score feels deliberately subdued — as do cinematographer Brian Rigney Hubbard’s often static wide shots bathed in bright sunlight — if perhaps excessively so. Carlos Aguilar, Los Angeles Times, "Review: Flashback to Lebanon ‘1982,’ for an empathetic look at life with war on the horizon," 17 Jan. 2021 Artists are canaries in the culture’s coal mines, sensitive to otherwise imperceptible shifts in social posture and gaping voids in consciousness. Los Angeles Times, "Culture in 2020: What we lost and found in the year of COVID," 14 Dec. 2020 The result is an album that tackles familiar topics — relationships, mostly — with a fresh, sometimes almost imperceptible New Age tinge. Natalie Weiner, Los Angeles Times, "With singing bowls for your chakras and slinky R&B, Jhené Aiko wants to heal you," 10 Dec. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'imperceptible.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of imperceptible

15th century, in the meaning defined above

History and Etymology for imperceptible

Middle English, from Middle French, from Medieval Latin imperceptibilis, from Latin in- + Late Latin perceptibilis perceptible

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Time Traveler for imperceptible

Time Traveler

The first known use of imperceptible was in the 15th century

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Statistics for imperceptible

Last Updated

7 Apr 2021

Cite this Entry

“Imperceptible.” Dictionary, Merriam-Webster, Accessed 15 Apr. 2021.

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More Definitions for imperceptible



English Language Learners Definition of imperceptible

: impossible to see or notice


im·​per·​cep·​ti·​ble | \ ˌim-pər-ˈsep-tə-bəl How to pronounce imperceptible (audio) \

Kids Definition of imperceptible

: not noticeable by the senses or by the mind : very small or gradual imperceptible changes

Other Words from imperceptible

imperceptibly \ -​blē \ adverb

More from Merriam-Webster on imperceptible

Thesaurus: All synonyms and antonyms for imperceptible

Nglish: Translation of imperceptible for Spanish Speakers

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