From Longman Dictionary of Contemporary Englishpiercingpierc‧ing1 /ˈpɪəsɪŋ $ ˈpɪr-/ adjective 🔊 🔊 1eyes/lookLOOK AT literary someone with piercing eyes is looking at you and seems to know what you are thinking 🔊 There was mockery now in those piercing blue eyes. 🔊 She felt foolish and unsure under his piercing gaze. 🔊 He gave her a piercing look.2soundHIGH SOUND OR VOICELOUD/NOISY a sound that is piercing is high, sharp, and unpleasant 🔊 He grinned and let out a piercing whistle. 🔊 a piercing scream► see thesaurus at high, loud3windCOLD a piercing wind is very cold4pain causing a lot of pain 🔊 She felt a piercing sensation in her arm.5emotionSAD/UNHAPPY [only before noun]affecting your feelings very deeply in a sad way 🔊 a piercing moment of regret —piercingly adverb 🔊 It was piercingly cold. 🔊 She looked at him piercingly.