Source : Webster's Revised Unabridged Dictionary (1913)

Screechy \Screech"y\, a.
   Like a screech; shrill and harsh.

Source : WordNet®

screechy
     adj : having or making a high-pitched sound such as that made by a
           mouse or a rusty hinge [syn: {screaky}, {squeaking}, {squeaky},
            {squealing}]