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subsonic Synonyms
Another word for subsonic
Choosing another word for subsonic that fits your sentence is easier when synonyms and similar words are paired with an exact adjective definition and ranked by match strength.
• adjective (Context 1)
Having or relating to a frequency too low to be heard by the human ear (typically below 20 hertz).
Usage Example
"The sensitive seismograph detected infrasonic vibrations deep within the earth long before the tremors were felt at the surface."
Strongest
infrasonic
Opposites of subsonic
The opposite of subsonic shifts depending on context. Common opposites include:
ultrasonic
supersonic
hypersonic
audible
• Nearby Words
Cite this Entry
Wordmom. (2026). Synonyms for Subsonic. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/subsonic