infrasonic

I1N1F4R1A1S1O1N1I1C3

adjective

Having frequencies below the human audible range

Similar
inaudibleunhearable
Opposite
ultrasonic
OriginEnglish sonic ← Latin sonus ← Proto-Indo-European *swónh₂os →
RareScrabble 15
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Meanings

adjectiveinfrasonic (comparative more infrasonic, superlative most infrasonic)

comparative more infrasonic · superlative most infrasonic

  1. acousticsHaving frequencies below the human audible range
  2. Generating or employing such sound waves

Synonyms & antonyms

Opposite
ultrasonic

adjectivehaving frequencies below those of audible sound

Similar
inaudibleunhearable
Also see
inaudibleunhearable

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*h₁én
  2. Proto-Italic*en
  3. Proto-Italic*en-
  4. Latinin-
  5. Proto-Indo-European*bʰer-
  6. Proto-Indo-European*bʰéreti
  7. Proto-Italic*ferō
  8. Latinferō
  9. Latinīnferō
  10. Latinīnfrā
  11. Englishinfra-
  12. Proto-Indo-European*swenh₂-
  13. Proto-Indo-European*swónh₂os
  14. Latinsonus
  15. Englishsonic
  16. Englishinfrasonic

From infra- + sonic.

Full word history & related roots →

Translations

Catalan infrasònic
  • infrasònichaving low frequencies
Finnish infraääni-, infraääni-
  • infraääni-having low frequencies
  • infraääni-generating such sound waves
French infrasonore
  • infrasonorehaving low frequencies
Italian infrasonoro
  • infrasonorohaving low frequencies
Latin infrasonicus
  • infrasonicushaving low frequencies
Romanian infrasonic
  • infrasonichaving low frequencies
Russian инфразвуково́й, инфразвуково́й
  • инфразвуково́й (infrazvukovój)having low frequencies
  • инфразвуково́й (infrazvukovój)generating such sound waves
Spanish infrasónico
  • infrasónicohaving low frequencies
Tagalog suludnugin
  • suludnuginhaving low frequencies

Rhymes & wordplay

Rhymes with infrasonic

electronicchronicsonicharmonicmonophonicionicironicultrasonictonicmasonicsymphonicsupersoniciconicdemoniccolonicmnemonicbionicplatonicmonotonichydroponichadronicplanktonicphoniccarbonic
All rhymes →
Cite this entry
APA

infrasonic. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/infrasonic

MLA

“infrasonic.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/infrasonic. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “infrasonic,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/infrasonic.

Source: infrasonic on Wiktionary, CC BY-SA 4.0.