Delusive

The poor thing was finally got off, with several delusive assurances that his absence should be short: that Mr. Edgar and Cathy would visit him, and other promises, equally ill-founded, which I invented and reiterated at intervals throughout the way.

Source: wiktionary

[I]t seemed calculated to suggest ideas she had no intention to suggest: ideas delusive and disturbing.

Source: wiktionary

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.

Source: wiktionary