"Visionary" is a word in ENGLISH

One whose imagination is disturbed; one who sees visions
or phantoms.

Existing in imagination only; not real; fanciful;
imaginary; having no solid foundation; as, visionary prospect; a
visionary scheme or project.

Affected by phantoms; disposed to receive impressions on
the imagination; given to reverie; apt to receive, and act upon,
fancies as if they were realities.

Of or pertaining to a visions or visions; characterized
by, appropriate to, or favorable for, visions.

One whose imagination overpowers his reason and controls
his judgment; an unpractical schemer; one who builds castles in the
air; a daydreamer.