Shriller Synonyms and Antonyms

High-pitched, harsh in sound
(Adjective)
Synonyms:
  1. harsher
  2. thinner
  3. sharper
Antonyms:
  1. lower
  2. fainter
  3. softer
Having or emitting a high-pitched and sharp tone or tones
(Adjective)
Synonyms:
  1. higher
  2. sharper
  3. sounder
  4. louder
  5. keener