visionary

Concise Oxford English Dictionary © 2008 Oxford University Press:
visionary/ˈvɪʒənri/

▶adjective

• 1 thinking about or planning the future with imagination or wisdom.

• 2 relating to supernatural apparitions or visions in a dream or trance.

• 3 archaic existing only in the imagination.

  ■ (of a scheme or idea) not practical.

▶noun (pl. visionaries) a visionary person.

– derivatives
visionariness noun.