delusive

Etymology

delude +‎ -ive

Adjective

delusive (comparative more delusive, superlative most delusive)

1. Producing delusions.
2. Delusional.
3. Inappropriate to reality; forming part of a delusion.
   • 1849, Charlotte Brontë, Shirley

     It seemed calculated to suggest ideas she had no intention to suggest — ideas delusive and disturbing.

   • 1885, John Ormsby, Don Quixote, volume 2, translation of El ingenioso hidalgo Don Quijote de la Mancha by Miguel de Cervantes, chapter XXIII:

     I opened my eyes, I rubbed them, and found I was not asleep but thoroughly awake. Nevertheless, I felt my head and breast to satisfy myself whether it was I myself who was there or some empty delusive phantom; but touch, feeling, the collected thoughts that passed through my mind, all convinced me that I was the same then and there that I am this moment.