illuminative

[ ih-loo-muh-ney-tiv, -nuh-tiv ]

/ ɪˈlu məˌneɪ tɪv, -nə tɪv /

giving light; illuminating.

Origin of illuminative

First recorded in 1635–45; illuminate + -ive

non·il·lu·mi·na·tive, adjective un·il·lu·mi·na·tive, adjective

She dashed into the crude and sketchy character bold strokes of Nature and illuminative gleams of genius, all her own.

The Atlantic Monthly, Volume 4, No. 23, September, 1859 |Various
Many of the facts given in this chapter are taken from these illuminative essays.

The Position of Woman in Primitive Society |C. Gasquoine Hartley
On being asked why it was so necessary that the Prince should return, the Turk became most illuminative.

The Secrets of a Kuttite |Edward O. Mousley
He realises very clearly how illuminative the theory of evolution is when applied to the puzzling facts of embryonic development.

Form and Function |E. S. (Edward Stuart) Russell

The fact that he does write in that mood points to the one illuminative truth now essential to be remembered.

Shadows of the Stage |William Winter