illusory
Concise Oxford English Dictionary © 2008 Oxford University Press:
illusory /ɪˈl(j)uːs(ə)ri/
▶adjective based on illusion; not real.
– derivatives
illusorily adverb,
illusoriness noun.
illusorily adverb,
illusoriness noun.
'illusory' also found in these Oxford entries:

