This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Describing a sound as resembling a screech, or given to screeching.

adj. Like a screech; shrill and harsh.

Shrill and harsh, like a screech.

Given to screeching; screamy; loudmouthed: as, a screechy woman.

adj. having or making a high-pitched sound such as that made by a mouse or a rusty hinge

"Sciencebloggers were complaining about his general lack of substance and about his cult of personality amen chorus of adherents whom were dubbed the screechy monkeys."

high    high-pitched   

ululating    unlikeable    wooden-legged    jewel-encrusted    six-foot-six    red-necked    needling    blood-freezing    semi-hysterical    soul-sick