delusional

he became delusional after the head injury and believed he was a superhero.

her delusional behavior included talking to invisible people in the park.

the suspect's delusional state made it difficult to question him effectively.

it's easy to fall into a delusional world when you're constantly seeking validation.

the therapist gently challenged his delusional beliefs about being famous.

living in a delusional fantasy can prevent someone from facing reality.

the patient's delusional system revolved around a secret government conspiracy.

it's important to distinguish between eccentricity and a truly delusional state.

his delusional grandeur led him to make unrealistic business proposals.

the movie explored the tragic consequences of a delusional protagonist.

she displayed delusional thinking, believing she could fly.