The Collaborative International Dictionary of English v.0.48:
illusionary \illusionary\ adj. marked by or producing illusion; as, illusionary stage effects. Syn: illusional. [WordNet 1.5]WordNet (r) 3.0 (2006):
illusionary adj 1: marked by or producing illusion; "illusionary stage effects" [syn: illusional, illusionary]