delusional
Delusional (adjective) means believing things that are clearly untrue, or relating to such false beliefs. Example: “He's delusional if he thinks the team will win the title this year.”
How to use delusional
Learner’s notesIn plain EnglishOut of touch with reality — holding beliefs that just aren't true.
Often used casually and hyperbolically in everyday speech ("you're delusional") without any clinical meaning intended.
Word forms
- Plural
- delusionals
- Comparative
- more delusional
- Superlative
- most delusional
Fill the gap
Can you complete this real example?
He's _____ if he thinks the team will win the title this year.
Etymology
Formed from delusion and -al.