A "powerful delusion" refers to a strong and convincing false belief that someone holds. It implies that the person is completely convinced of something that is not true, and this false belief has a strong influence on their thoughts and actions.
Sentences with «powerful delusion»
Between powerful delusions, a lengthy story, plenty of side quests and secrets galore, is Akiba's Beat a welcome addition to the Akiba family or were they better off continuing with Street? (justpushstart.com)
Katherine held powerful delusions that trapped her in the past — 1996. (newlawjournal.co.uk)
For this reason God sends them a powerful delusion so that they will believe the lie and so that all will be condemned who have not believed the truth but have delighted in wickedness. (religion.blogs.cnn.com)