the belief that you must protect yourself because other people are going to attack you.
Many designers develop a siege mentality because they're terrified someone will steal their ideas.
(redirected from a siege mentality)
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.