chimerical (adj.)
- absurd
- aerial
- airy
- ambitious
- apparent
- apparitional
- autistic
- chimeric
- deceptive
- delusional
- delusive
- delusory
- dreamlike
- dreamy
- erroneous
- ethereal
- fabulous
- fallacious
- false
- fanciful
- fantastic
- fatuous
- fictional
- fictive
- gaseous
- illusional
- illusionary
- illusive
- illusory
- imaginary
- misleading
- mythical
- ostensible
- phantasmagoric
- phantasmal
- phantom
- preposterous
- pretentious
- rarefied
- seeming
- shadowy
- specious
- spectral
- spirituous
- subtle
- supposititious
- tenuous
- unfounded
- unreal
- unsubstantial
- utopian
- vaporous
- visionary
- windy
