Source : Webster's Revised Unabridged Dictionary (1913)

Delusive \De*lu"sive\, a. [See {Delude}.]
   Apt or fitted to delude; tending to mislead the mind;
   deceptive; beguiling; delusory; as, delusive arts; a delusive
   dream.

         Delusive and unsubstantial ideas.        --Whewell.
   -- {De*lu"sive*ly}, adv. -- {De*lu"sive*ness}, n.

Source : WordNet®

delusively
     adv : in a deceptive and unrealistic manner; "the village looked
           delusively near"