Sonic and Unhearable
Opposite meaning words
Sonic
Sonic adjective - (of speed) having or caused by speed approximately equal to that of sound in air at sea level.
Show all Definitions
Synonyms for Sonic
Unhearable is an antonym for sonic.
Unhearable
Unhearable adjective - Impossible to hear; imperceptible by the ear.
Sonic is an antonym for unhearable.
Cite this Source
Unhearable and Sonic. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/sonic/unhearable
Sonic & Unhearable. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/sonic/unhearable>.
Unhearable or Sonic. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/sonic/unhearable.
Google Ngram Viewer shows how "sonic" and "unhearable" have occurred on timeline