An exaggerated or abnormal reaction to a stimulus, often used in a medical context to refer to allergies or heightened emotional reactions.

अतिसंवेदनशीलता

English Usage: The patient's hypersensitivity to pollen made it difficult for him to enjoy the outdoors in spring.

Hindi Usage: मरीज की पोलन के प्रति अतिसंवेदनशीलता ने उसे वसंत में बाहर निकलने में मुश्किलें दीं।