mental agility

imagination; originality; invention; fancy; inspiration; verve., warm imagination, heated imagination, excited imagination, sanguine imagination, ardent imagination, fiery imagination, boiling imagination, wild imagination, bold imagination, daring imagination, playful imagination, lively imagination, fertile imagination, fancy., "mind's eye"; "such stuff as dreams are made of" [Tempest]., ideality, idealism; romanticism, utopianism, castle-building., dreaming; phrensy, frenzy; ecstasy, extasy; calenture (delirium); reverie, trance; daydream, golden dream; somnambulism., conception, Vorstellung, excogitation, "a fine frenzy"; cloudland, dreamland; flight of fancy, fumes of fancy; "thick coming fancies" [Macbeth]; creation of the brain, coinage of the brain; imagery., conceit, maggot, figment, myth, dream, vision, shadow, chimera; phantasm, phantasy; fantasy, fancy; whim, whimsey, whimsy; vagary, rhapsody, romance, gest, geste, extravaganza; air drawn dagger, bugbear, nightmare., flying Dutchman, great sea serpent, man in the moon, castle in the air, chateau en Espagne; Utopia, Atlantis, happy valley, millennium, fairyland; land of Prester John, kindgom of Micomicon; work of fiction (novel); Arabian nights; le pot au lait; dream of Alnashar (hope)., illusion (error); phantom (fallacy of vision); Fata Morgana (ignis fatuus); vapor (cloud); stretch of the imagination (exaggeration); mythogenesis., idealist, romanticist, visionary; mopus; romancer, dreamer; somnambulist; rhapsodist (fanatic); castle-buildier, fanciful projector.