Meaning : Having or emitting a high-pitched and sharp tone or tones.
Example :
A shrill whistle.
A shrill gaiety.
Synonyms : sharp
Meaning : Being sharply insistent on being heard.
Example :
Strident demands.
Shrill criticism.
Synonyms : strident
Meaning : Of colors that are bright and gaudy.
Example :
A shrill turquoise.