unrealistic
Barmecidal
Barmecide
absurd
aerial
air-built
airy
ambitious
apparent
apparitional
autistic
chimeric
cloud-born
cloud-built
cloud-woven
deceitful
deceptive
delusional
delusionary
delusive
delusory
dereistic
dreamlike
dreamy
erroneous
ethereal
fabulous
fallacious
false
fanciful
fantastic
fatuitous
fatuous
fictional
fictive
gaseous
gossamery
illusional
illusionary
illusive
illusory
imaginary
misleading
mythical
ostensible
phantasmagoric
phantasmal
baseless
fantastical
farfetched
fictitious
impracticable
impractical
improbable
indefensible
preposterous
quixotic
unpractical
unreal
untrue
unwarranted
visionary
clerical
numerical