Isolation (psychology) definition

noun

(1) The act of isolating something; setting something apart from others

(2) A country's withdrawal from international politics

"He opposed a policy of American isolation"

(3) A feeling of being disliked and alone

(4) (psychiatry) a defense mechanism in which memory of an unacceptable act or impulse is separated from the emotion originally associated with it

(5) A state of separation between persons or groups