haunted expression/look
From Longman Dictionary of Contemporary Englishhaunted expression/lookhaunted expression/lookWORRIEDFRIGHTENEDa very worried or frightened expression → hauntedExamples from the Corpushaunted expression/look• A sleepless night had added to her pallor and the haunted look in her eyes.• It still had the gaunt, haunted look that had so put Meg off before.