imperceptible
adjective
im·per·cep·ti·ble
ˌim-pər-ˈsep-tə-bəl 
: not perceptible by a sense or by the mind : extremely slight, gradual, or subtle
imperceptible differences
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
Our data about the Amundsen Sea’s past and the resulting forecast indicate that onshore changes in West Antarctica will not be slow, gradual or imperceptible from a human perspective.
—
Keiji Horikawa, The Conversation, 22 Dec. 2025
But at some imperceptible moment, things shifted; suddenly black fins, white tails and entire submarinelike bodies were popping out of the water just a few hundred feet away.
—Kelso Harper, Scientific American, 16 Dec. 2025
In the middle distance imperceptible to language?
—Literary Hub, 8 Dec. 2025
Finish with very soft, almost imperceptible waves.
—Andrea Carbajal, Glamour, 5 Dec. 2025
See All Example Sentences for imperceptible
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Keiji Horikawa, The Conversation, 22 Dec. 2025
But at some imperceptible moment, things shifted; suddenly black fins, white tails and entire submarinelike bodies were popping out of the water just a few hundred feet away.
—Kelso Harper, Scientific American, 16 Dec. 2025
In the middle distance imperceptible to language?
—Literary Hub, 8 Dec. 2025
Finish with very soft, almost imperceptible waves.
—Andrea Carbajal, Glamour, 5 Dec. 2025
See All Example Sentences for imperceptible
Cite this Entry
“Imperceptible.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/imperceptible. Accessed 1 Jan. 2026.
Copy CitationKids Definition
imperceptible
adjective
im·per·cep·ti·ble
ˌim-pər-ˈsep-tə-bəl
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
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