Shrill

acuto

(sharp or keen to the senses)

isterico

(especially of a complaint or demand: fierce, loud, strident)

penetrante

(high-pitched and piercing)

squillante

(high-pitched and piercing)

stridente

(high-pitched and piercing)

stridente

(sharp or keen to the senses)

stridio

(high-pitched and piercing)

stridore

(high-pitched and piercing)

stridula

(having a shrill voice)

stridulo

(high-pitched and piercing)

stridere

(to make a shrill noise)