What is an antonym for infrasound?
Possible antonyms include ultrasound.
(physics) Sound waves having a frequency below the human audible range (below about 20 Hz).
Common opposites include ultrasound.
Related dictionary entries include ultrasound, hypersound, fundamental, infrared, voiceband, shortwave.
A related word is not always a direct replacement. Compare its definition, grammar, tone, and sentence context first.
Possible antonyms include ultrasound.
Relationships are shown only after the shared lexical validator accepts them. A suggestion is not automatically an exact replacement.