IMPERCEPTIBLE Synonyms: 54 Similar and Opposite Words

imperceptible

adjective

ˌim-pər-ˈsep-tə-bəl

Definition of imperceptible

as in invisible

not perceptible by a sense or by the mind a slight difference in hue between the two glasses that's imperceptible unless they're placed side by side

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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.

Recent Examples of imperceptible Masons, carvers and conservators all work towards the preservation and enhancement and even creation of heritage, but as experience and knowledge grows so a gradual almost imperceptible transition occurs. — Literary Hub, 21 Sep. 2026 The building has no ramps as the designers kept all slopes to a gentle two percent that’s virtually imperceptible. — Edward Keegan, Chicago Tribune, 19 Sep. 2026 Behaviorists emphasized observable behavior, which could be measured experimentally, and generally avoided using imperceptible internal mental states to explain behavior. — Encyclopedia Britannica, 8 Sep. 2026 That nearly imperceptible shift in the winds drifting from the nearest football stadium? — Matt Piper, New York Times, 5 Sep. 2026 See All Example Sentences for imperceptible

Recent Examples of Synonyms for imperceptible

Adjective

Self-attestation is how most AI security gaps stay invisible until an incident forces a look.

— TJ Marlin, Forbes.com, 16 Oct. 2026
Gabi Abrão is a writer and internet entity from Los Angeles whose work aims to develop a language with the invisible.

— Gabi Abrão, Los Angeles Times, 16 Oct. 2026

Definition of invisible

Adjective

Coleman said each design has its own distinct character and can be styled individually, either as a subtle everyday detail or a sculptural statement.

— Tianwei Zhang, Footwear News, 15 Oct. 2026
As the researchers saw, introducing random mutation could still make subtle structural tweaks that produced enzymes that were considerably more active.

— ArsTechnica, ArsTechnica, 14 Oct. 2026

Definition of subtle

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imperatives

imperceptible

imperceptibly

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“Imperceptible.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/imperceptible. Accessed 21 Oct. 2026.

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Synonyms of imperceptible

adjective

Example Sentences

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