Defn: Pertaining to, involving, or caused by, imagination.

IMAGINATIONALISM
Im*ag`i*na"tion*al*ism, n.

Defn: Idealism. J. Grote.

IMAGINATIVE
Im*ag"i*na*tive, a. Etym: [F. imaginatif.]

1. Proceeding from, and characterized by, the imagination, generally in the highest sense of the word. In all the higher departments of imaginative art, nature still constitues an important element. Mure.

2. Given to imagining; full of images, fancies, etc.; having a quick imagination; conceptive; creative. Milton had a highly imaginative, Cowley a very fanciful mind. Coleridge.

3. Unreasonably suspicious; jealous. [Obs.] Chaucer.
— Im*ag"i*na*tive*ly, adv.
— Im*ag"i*na*tive*ness, n.

IMAGINE
Im*ag"ine, v. t. [imp. & p. p. Imagined; p. pr. & vb. n. Imagining.]
Etym: [F. imaginer, L. imaginari, p.p. imaginatus, fr. imago image.
See Image.]

1. To form in the mind a notion or idea of; to form a mental image of; to conceive; to produce by the imagination. In the night, imagining some fear, How easy is a bush supposed a bear! Shak.

2. To contrive in purpose; to scheme; to devise; to compass; to purpose. See Compass, v. t., 5. How long will ye imagine mischief against a man Ps. lxii. 3.