imperceptible

adjective

im·​per·​cep·​ti·​ble ˌim-pər-ˈsep-tə-bəl How to pronounce imperceptible (audio)
: not perceptible by a sense or by the mind : extremely slight, gradual, or subtle
imperceptible differences
imperceptibly 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Bonus points: For the way longtime linemate Jari Kurri delivers an almost imperceptible pat on the back right after the goal. Sean McIndoe, New York Times, 26 Mar. 2025 Progress has been measured in small, almost imperceptible victories. Elizabeth Austin, Time, 26 Mar. 2025 Often, archaeologists discover traces of Egyptian blue that are all but imperceptible to the human eye. Eli Wizevich, Smithsonian Magazine, 4 Feb. 2025 No broker in the world can sell a leaning tower at twenty-four hundred dollars per square foot, even if the lean is imperceptible to the naked eye, and even though the flaw is not so anomalous. Eric Lach, The New Yorker, 3 Feb. 2025 See All Example Sentences for imperceptible

Word History

Etymology

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

First Known Use

15th century, in the meaning defined above

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

Browse Nearby Words

Cite this Entry

“Imperceptible.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/imperceptible. Accessed 1 Apr. 2025.

Kids Definition

imperceptible

adjective
im·​per·​cep·​ti·​ble ˌim-pər-ˈsep-tə-bəl How to pronounce imperceptible (audio)
1
: not noticeable : not perceptible by a sense or by the mind
one whose beauty was imperceptible to others
2
: hardly noticeable : very small or gradual
an imperceptible smile
imperceptibly adverb

More from Merriam-Webster on imperceptible

Last Updated: - Updated example sentences
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