What is another word for infrasonic?
Pronunciation: [ˌɪnfɹəsˈɒnɪk] (IPA) 
Infrasonic is an adjective used to describe sounds that are below the range of human hearing. However, there are several synonyms that can be used to describe such sounds. One such synonym is sub-audible, which means sounds that are not audible or cannot be heard by humans. Another synonym is low-frequency, which means sounds that have a lower frequency than what is audible to the human ear. Other synonyms include subsonic, which means sounds that are slower than the speed of sound, and ultrasonic, which means sounds that are above the range of human hearing. Using these synonyms can help add variety and specificity to your language when describing infrasonic sounds.
