›going through or into something: Troops have been issued with new armour-piercing anti-tank grenades.figurativeWe shivered in the piercing wind.Making holes in things›describes a sound that is high, loud, and unpleasant: piercing screamsNoise and noisya piercing criticism, question, remark, etc.›a criticism, question, remark, etc. that is unpleasant or uncomfortable because it is strong or it makes you think about or discuss something that you would prefer not to: She hadn't really meant to lie, but their piercing questions had forced her to.Serious and unpleasantNot attractive to look atInformal words for badpiercing eyes, look, gaze, etc.›used to describe when a person looks very carefully at someone or something, especially when they are trying to discover something, often making people feel uncomfortable: Sherlock Holmes gave him a piercing glance.He looked straight at me with his piercing blue eyes.Using the eyesEyesight, glasses and lensesThe eye and surrounding areaPerceptivepiercingly