im·​per·​cep·​ti·​ble | \ˌim-pər-ˈsep-tə-bəl \

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 \ 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 performance difference is neigh imperceptible, with the V8 car running 0-60 in 3.5 seconds, only tenth of a second slower than the V12 Ferrari. Ezra Dyer, Popular Mechanics, "The Ferrari "Family Car" Still Spits Fire," 24 Aug. 2018 In a blog post on Sunday night, the Institute of Geologic and Atmospheric Investigations appeared to push back at the doubters, clarifying that the event was imperceptible to the general population. New York Times, "Did Mexico’s Revelry in World Cup Win Over Germany Cause an Earthquake?," 17 June 2018 The resistance to movements like #MeToo tends to come not in grand claps, but in soft hums, low and slow and nearly imperceptible until, the whole thing accumulates into a din that becomes deafening. Megan Garber, The Atlantic, "When the White House Is a Safe Space," 6 July 2018 Scambos’s team looked through several years of satellite data to find times and places when the temperature dipped even lower, which usually occurred in almost imperceptible dips and hollows in the ice. Laura Yan, Popular Mechanics, "Scientists Just Measured the Coldest Place on Earth," 30 June 2018 In a blog post Sunday night, the Institute of Geologic and Atmospheric Investigations appeared to push back at the doubters, clarifying that the event was imperceptible to the general population. Author: Kirk Semple, Paulina Villegas, Anchorage Daily News, "Mexico’s World Cup defeat of Germany might have been earthshaking – literally," 18 June 2018 The imperceptible layer, which is applied to exterior of the produce, is made of plant material. Beth Kowitt, Fortune, "Millennials, Rejoice! Costco Is Selling New Avocados That Stay Ripe Twice as Long," 19 June 2018 It’s hard to get bored when an insanely shredded coach is barking orders in a voice that would cause a drill sergeant to offer an almost-imperceptible nod of approval. Tres Dean, GQ, "The Best Martial Arts for Getting Anderson Silva-Ripped," 13 June 2018 Another Loire rosé, from Chinon, the 2017 Le Verre en Vignon, was so light as to be almost imperceptible on the palate. Lettie Teague, WSJ, "The Surprising Truth About the Price of Rosé," 24 May 2018

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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Last Updated

21 Nov 2018

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Time Traveler for imperceptible

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

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English Language Learners Definition of imperceptible

: impossible to see or notice


im·​per·​cep·​ti·​ble | \ˌim-pər-ˈsep-tə-bəl \

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

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More from Merriam-Webster on imperceptible

Rhyming Dictionary: Words that rhyme with imperceptible

Thesaurus: All synonyms and antonyms for imperceptible

Spanish Central: Translation of imperceptible

Nglish: Translation of imperceptible for Spanish Speakers

Comments on imperceptible

What made you want to look up imperceptible? Please tell us where you read or heard it (including the quote, if possible).


a knickknack or trinket

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