/ Dictionary / Index S siege mentality: Meaning and Definition of Find definitions for: siege' mental"ity Pronunciation: [key] a state of mind whereby one believes that one is being constantly attacked, oppressed, or isolated. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. siege Siege Perilous Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language