Imperceptible
Imperceptible adjective - Not perceptible by a sense or by the mind.
Undeterminable and imperceptible are semantically related. In some cases you can use "Undeterminable" instead an adjective "Imperceptible".
Nearby Word: imperceptibly
Undeterminable
Undeterminable adjective - Not capable of being definitely decided or ascertained.
Imperceptible and undeterminable are semantically related. You can use "Imperceptible" instead an adjective "Undeterminable".
Nearby Word: undetermined
Mutual synonyms
Cite this Source
Undeterminable and Imperceptible. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/imperceptible/undeterminable
Imperceptible & Undeterminable. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/imperceptible/undeterminable>.
Undeterminable or Imperceptible. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/imperceptible/undeterminable.
Google Ngram Viewer shows how "imperceptible" and "undeterminable" have occurred on timeline