Not in perfect mental working order; eccentric, peculiar. (adjective)
Full of spirit; spirited. (adjective)
Examples of word cranky
Half the reason we are so goddamn cranky is that we are constantly seeing profoundly talented people passed up for books that are "more commercial" (read: "OMG the hot new dude at school IS ACTUALLY A SUPERNATURAL ENTITY WHO WANTS TO DO IT WITH ME!!!!"); it makes us sad, but the industry right now is not a pretty picture, dear ones.
Most of her life, she lived in cranky desperation.
Luna Lovegood, also, is too ready to believe in cranky theories.
Since being cranky is pretty much the opposite of having a good time, my Powerbook has been hiding out in my backpack for the last few days, while I've been out enjoying that real life I have read so much about on its screen.
I am pretty sure I have redefined the word cranky in their minds.