1
general::
sounds
high-pitched
higher than most sounds or voices:
• He has a rather high-pitched voice. • Bats make high-pitched squeaks. • the high-pitched whine of a dentist's drill
shrill
high and unpleasant:
• Her voice became more shrill. • The bird has rather a shrill cry.
piercing
extremely high and loud, in a way that is unpleasant:
• a piercing scream • Suddenly I heard a piercing whistle.
squeaky
making very high noises that are not loud:
• a squeaky gate • squeaky floorboards • a squeaky little voice
Longman-Thesaurus