Shrillest Synonyms and Antonyms

Having or emitting a high-pitched and sharp tone or tones
(Adjective)
Synonyms:
  1. highest
  2. loudest
  3. sharpest
  4. vividest
  5. harshest
  6. soundest
  7. acutest
  8. thinnest
  9. keenest
Antonyms:
  1. lowest
  2. faintest
  3. softest