illusionary

From illusion +‎ -ary.

illusionary (comparative more illusionary, superlative most illusionary)

1. Illusory; pertaining to an illusion, or of the nature of an illusion.
   • 1980, David Muench, Jerry Flemmons, Texas, page 8:

     It is all illusionary today — the fantasy of cowboyism, the western Yippee Syndrome of spurs that jingle, jangle, jingle, of hats as large as Bangalore parasols, of boots smeared with the residue of cowlots […]