Synonyms for Shrill:

adj.

all (adjective)
sharp, strident.
high (adjective)
shrilly, shrieky, piping, treble.
high-pitched, harsh in sound (adjective)
clangorous, metallic, high, deafening, treble, piercing, sharp, discordant, penetrating, screeching, ear-piercing, cacophonous, raucous, piping, blaring, thin, acute, noisy, clanging, earsplitting, strident.
loud (adjective)
earsplitting.
screaming (adjective)
shrieking.

n.

brittle, appealing, breathy, flat, adenoidal, disembodied, dead, croaky, fruity. scream, shrieky, roar, sounds, piping, shrilly, yell, cry out, shout, call out, cry, rage, chant, bellow. clack, bang, caterwaul, clash, boom, blast, beep, blare, clang, clank. high-pitched (noun)
earsplitting, blaring, clangorous, loud, piping, noisy, thin, deafening, metallic, clanging, cacophonous, discordant.
shrill (noun)
high-pitched, sharp, piercing, pipe up, pipe, screech, shriek, high.

Other synonyms:

loud, shrilly, noisy, deafening, shrieky, piping. scream. thin. scream
screaming, screech.
sound
clanging.

Usage examples for shrill

  1. " There's our luggage," said Anna- Rose, turning to Mr. Sack on getting inside the room, her voice gone a little shrill in her determined cheerfulness. – Christopher and Columbus by Countess Elizabeth Von Arnim
  2. There was a sharp, shrill cry from the boy, and Dozier whirled on him. – Way of the Lawless by Max Brand
  3. He has a wife, Mrs. Randall replied in a shrill whisper; a wife who is an invalid. – Linda Condon by Joseph Hergesheimer