Imperceptible
Imperceptible adjective - Not perceptible by a sense or by the mind.
Unheard and imperceptible are semantically related. In some cases you can use "Unheard" instead an adjective "Imperceptible".
Nearby Word: imperceptibly
Unheard
Unheard adjective - Not necessarily inaudible but not heard.
Show all Definitions
Synonyms for Unheard
Imperceptible and unheard are semantically related. Sometimes you can use "Imperceptible" instead an adjective "Unheard".
Mutual synonyms
Related pairs
Cite this Source
Unheard and Imperceptible. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/imperceptible/unheard
Imperceptible & Unheard. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/imperceptible/unheard>.
Unheard or Imperceptible. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/imperceptible/unheard.
Google Ngram Viewer shows how "imperceptible" and "unheard" have occurred on timeline