(a.) Of or pertaining to phantasmagoria; phantasmagorial.

Barmecidal Barmecide airy apparent apparitional autistic chimeric deceptive delusional delusionary delusive delusory dereistic dreamlike dreamy erroneous fallacious FALSE fantastic illusional illusionary illusive illusory imaginary misleading ostensible phantasmal phantom seeming self-deceptive self-deluding specious spectral supposititious unactual unfounded unreal unsubstantial visionary