1. having a harsh, high-pitched, and unpleasant sound

Examples

• The old door made a screechy noise when it opened.
• Her screechy voice could be heard across the entire playground.
• The chalk made a screechy sound against the blackboard.
• The screechy brakes on the old car needed to be replaced.
• The microphone produced a screechy feedback that hurt our ears.
• The violin sounded screechy when the student first started learning.