Chapter Words Relating to the Intellectual Faculties of Index by Roget's Thesaurus

Imaginative, inventive, creative, fertile, romantic, flighty, extravagant, high-flown, fanatic, enthusiastic, Utopian, Quixotic.

Warm, heated, excited, sanguine, ardent, fiery, boiling, wild, bold, daring; playful, fertile, etc., imagination or fancy.