high-pitched and piercing in sound quality

a shrill cry.

producing such a sound.

full of or characterized by such a sound

shrill music.

betraying some strong emotion or attitude in an exaggerated amount, as antagonism or defensiveness.

marked by great intensity; keen

the shrill, incandescent light of the exploding bomb.

to cry shrilly.

a shrill sound.

in a shrill manner; shrilly.

adjective

high-pitched , piercing , piping , shrieky , shrill , treble