Answer: piercing

AnswerCrossword Clue
PIERCINGShrill
PIERCINGKeen.
piercing(of a feeling) Affecting one keenly or deeply
piercing(of mental attributes) Sharp; profound
piercing(of wind or extreme temperature) Seeming to cut through one
piercing(of eyes or a look) Appearing to see through someone; searching
piercing(of a voice or sound) Extremely high, loud, or shrill