fantast

ennustaja puhekieltä One whose manners or ideas are fantastic and fanciful.
(w)

He is indeed all this; and what he has more than all this peculiar to himself, I seem to convey to my own mind in some measure by saying, — that he is a quiet and sublime enthusiast with a strong tinge of the fantast, — the humourist constantly mingling with, and flashing across, the philosopher, as the darting colours in shot silk play upon the main dye.