(a.) Like Don Quixote; overly idealistic; absurdly romantic; apt to be deluded\.

absurd airy autistic chimerical dereistic dreamlike dreamy fanciful fantastic foolhardy idealistic impracticable impractical in the clouds mad optimistic otherworldly poetic preposterous rash reckless ridiculous romancing romantic romanticized starry-eyed storybook transcendental transmundane unpractical unrealistic unrealizable visionary wild wish-fulfilling