1. of, relating to, or characterized by delusion; based on or involving false beliefs or perceptions

Examples

• His delusionary belief that he was a famous actor led him to audition constantly despite repeated rejections.
• The patient's delusionary thinking made it difficult for doctors to explain her actual medical condition.
• She had a delusionary sense of her own importance in the company.
• Delusionary thoughts can be a symptom of certain mental health conditions.
• He dismissed her concerns as delusionary and refused to listen.
• The cult leader promoted delusionary ideas that isolated members from their families.