Strident
/ˈstɹaɪ.dənt/
noun
One of a class of s-like fricatives produced by an airstream directed at the upper teeth.
adjective
Loud; shrill, piercing, high-pitched; rough-sounding
“The trumpet sounded strident against the string orchestra.”
Grating or obnoxious
“The artist chose a strident mixture of colors.”
Vigorous; making strides