insensitive

UK: /ɪnˈsɛnsɪtɪv/ US: /ɪnˈsɛnsɪtɪv/ ,(in sen′si tiv)

WordReference Random House Learner's Dictionary of American English © 2026

in•sen•si•tive /ɪnˈsɛnsɪtɪv/   adj. 

1. not emotionally sensitive or sympathetic; callous:
   He has an insensitive nature.
2. not physically sensitive:
   insensitive skin.

in•sen•si•tive•ly, adv. 
in•sen•si•tiv•i•ty /ɪnˌsɛnsɪˈtɪvɪti/  n. [uncountable] See -sens-.

WordReference Random House Unabridged Dictionary of American English © 2026

in•sen•si•tive  (in sen′si tiv), adj. 

1. deficient in human sensibility, acuteness of feeling, or consideration;
   unfeeling;
   callous:
   an insensitive person.
2. not physically sensitive:
   insensitive skin.
3. not affected by physical or chemical agencies or influences:
   insensitive to light.
4. not readily responsive or aware:
   insensitive to the needs of the peasants.

• in-³ + sensitive 1600–10

in•sen′si•tive•ness, in•sen′si•tiv′i•ty, n. 

Collins Concise English Dictionary © HarperCollins Publishers::

insensitive / ɪnˈsɛnsɪtɪv/ adjective

1. lacking sensitivity; unfeeling
2. lacking physical sensation
3. (postpositive) followed by to: not sensitive (to) or affected (by): insensitive to radiation

inˈsensitively adverb

inˈsensitiveness, inˌsensiˈtivity noun