Crotchety.

1

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.

2

1881.  She ’s been a little notional, she ’s had her head addled by women’s talk, and she ’s in a queer freak; but it ’s only a girl’s freak after all: you can ’t say anything worse of her.—W. D. Howells, ‘Dr. Breen’s Practice,’ ix. (N.E.D.)

3