Pronunciation: /ɪnˈsɛnsɪtɪv/
adjective
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1showing or feeling no concern for others' feelings: an insensitive remark
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2not sensitive to a physical sensation: she was remarkably insensitive to pain
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not aware of or able to respond to something: both were in many ways insensitive to painting

Derivatives
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adverb -
noun -
Pronunciation: /-ˈtɪvɪti/
noun