Lacking emotion, compassion, or sensitivity; cold and indifferent to others' feelings.
From the prefix 'un-' (not) combined with 'feeling' (sensation or emotion). The word emerged in the 1600s to describe emotional detachment.
Psychologists distinguish between people who are unfeeling due to trauma, neurology (like psychopathy), or choice—understanding why someone seems cold is crucial for actually helping them.
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