A psychological response where someone protects themselves from perceived criticism or threat by counterattacking, making excuses, or deflecting responsibility. It's an automatic reaction that often escalates conflict rather than resolving it.
From Latin 'defensus' meaning 'to ward off.' The psychological meaning developed in the mid-20th century as therapists observed how people's protective mechanisms often created the very rejection they feared.
Defensiveness is like emotional armor that becomes so heavy it crushes the very relationships it's meant to protect. When someone gets defensive, they're usually protecting a vulnerable part of themselves - perhaps a deep fear of being flawed or unlovable - but the armor prevents others from seeing and caring for that tender spot.
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