[ hahy-per-sen-si-tiv ]
/ ˌhaɪ pərˈsɛn sɪ tɪv /


excessively sensitive: to be hypersensitive to criticism.
allergic to a substance to which persons do not normally react.

Origin of hypersensitive

First recorded in 1870–75; hyper- + sensitive

OTHER WORDS FROM hypersensitive

hy·per·sen·si·tive·ness, hy·per·sen·si·tiv·i·ty, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for hypersensitivity

British Dictionary definitions for hypersensitivity

/ (ˌhaɪpəˈsɛnsɪtɪv) /


having unduly vulnerable feelings
abnormally sensitive to an allergen, a drug, or other agent

Derived forms of hypersensitive

hypersensitiveness or hypersensitivity, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for hypersensitivity

[ hī′pər-sĕnsĭ-tĭv ]


Responding excessively to the stimulus of a foreign agent, such as an allergen; abnormally sensitive.

Other words from hypersensitive

hy′per•sensi•tive•ness null n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Cultural definitions for hypersensitivity


An excessive or abnormal sensitivity to a substance. A person who is hypersensitive to a certain drug will often suffer a severe allergic reaction (see allergy) if given the drug.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.