Webster’s Revised Unabridged Dictionary · 1913
Freakish
Freak′ish, a. Apt to change the mind suddenly; whimsical; capricious.
It may be a question whether the wife or the woman was the more freakish of the two. L'Estrange.
Freakish when well, and fretful when she's sick. Pope.
— Freak′ish·ly, adv. — Freak′ish·ness, n.