Crotchety.
1791. If a man is a little odd in his ways, his friends say he is a notional creature, or full of notions . Love is the most notional passion.Gazette of the U.S., Feb. 9: from the Am. Mercury, Hartford, Conn.
1881. She s been a little notional, she s had her head addled by womens talk, and she s in a queer freak; but it s only a girls freak after all: you can t say anything worse of her.W. D. Howells, Dr. Breens Practice, ix. (N.E.D.)