The Collaborative International Dictionary
Phantastic \Phan*tas"tic\, Phantastical \Phan*tas"tic*al\, a. See Fantastic.
Wiktionary
a. (dated form of fantastical English)
Usage examples of "phantastical".
For the penalty of death is not inflicted except for some grave and notorious crime, but it is otherwise with death of the soul, which can be brought about by the power of a phantastical illusion or even by the stress of temptation.
It is a most certain and most Catholic opinion that there are sorcerers and witches who by the help of the devil, on account of a compact which they have entered into with him, are able, since God allows this, to produce real and actual evils and harm, which does not render it unlikely that they can also bring about visionary and phantastical illusions by some extraordinary and peculiar means.
He says: Many phantastical apparitions occur to person suffering fro a melancholy disease, especially to women, as is shown by their dreams and visions.
O Queen, when he was here, and you were used to charm his melancholy and make a pish of his phantastical humorous forebodings.
But we hope that this will suffice to refute those who either deny altogether that there are such transvections, or try to maintain that they are only imaginary or phantastical.