This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Capriciously stubborn or eccentric; perverse.

adj. Cranky, disagreeable, or stubborn, especially if prone to odd whims or fancies.

adj. Given to crotchets; subject to whims.

Characterized by odd fancies or crotchets; fantastic or eccentric in thought; whimsical.

adj. having a difficult and contrary disposition

"It's what I call a crotchety conscience -- always in the way of your doing anything like anybody else."

ill-natured   

capricious    fanciful   

inconstant    vagarious    irascible    quick-tempered    self-willed    crossgrained    irresolute    wrongheaded    strong-headed    hot-tempered