fantast

1. (now rare) One whose manners or ideas are fantastic and fanciful; a dreamer.Examples: "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."; "I recall one particularly heady Outreach meeting, in 1985, at which one of the speakers was a fantast named Jack Wheeler, who liked to say that Izvestia had described him as an “ideological gangster” […]."archaic