epiphanimistic 

Going into an utterly hopeless situation with the optimism that that a sudden epiphany will solve all problems

Billy's attitude was epiphanimistic; he knew that even though he didn't study for his final exam, he would find a way to achieve a passing grade.

epiphanimistic by Will-I-Be-Barned January 21, 2012

Epiphanistic 

Epiphany = a sudden realisation of the clarity of the truth or meaning of something

Epiphanistic = an event or activity that is likely to bring about an Epiphany

Epiphanistic Thinker = a person who regularly has Epiphanies.

"Walking in these woods is Epiphanistic, I've had three great ideas so far."

Epiphanistic by ROxford November 30, 2017