a siege mentality

(redirected from Siege mentality)
Also found in: Dictionary, Wikipedia.

a siege mentality

The belief that one is constantly under attack and must protect oneself from hostility. Don't be surprised if Ned reacts to you with anger—he has a siege mentality that makes it difficult for him to see anything positively. Many people living in that war-torn country have developed a siege mentality.
See also: mentality, siege