Similar word to shriller:
acute, argute, blaring, blatant, cacophonous, clanging, clangorous, deafening, discordant, ear-piercing, earsplitting, high, metallic, noisy, penetrating, piercing, piping, raucous, screeching, sharp, strident, thin, treble
acute, argute, blaring, blatant, cacophonous, clanging, clangorous, deafening, discordant, ear-piercing, earsplitting, high, metallic, noisy, penetrating, piercing, piping, raucous, screeching, sharp, strident, thin, treble