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.
The emotional cost of mentally undoing and redoing past events might be imperceptible in the moment, but compounds considerably in the long run. Mark Travers, Forbes.com, 16 Apr. 2025 There was very little, almost imperceptible cross-control. ArsTechnica, 1 Apr. 2025 The Origins of Dark Energy The traditional explanation for the universe’s growth centers around dark energy, presumed to be an imperceptible force that pushes space outward and makes up nearly 70 percent of the universe. Jack Knudson, Discover Magazine, 27 Dec. 2024 There was very little, almost imperceptible cross-control. ArsTechnica, 1 Apr. 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 23 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

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