Definition of Jadish:

part of speech: adjective

Vicious- applied to a horse; unchaste- applied to a woman.

Usage examples:

• The mere sight of that curt, pert, and jadish name- Nell Gwynne- calls up that strangely alluring combination of features: the tip- tilted nose, the pouting lips, the eyes of a drowsy Cupid, the confident, impudent poise of the head. Lewis Clinton Strang in "Famous Prima Donnas".

• My daughter's obstinacy quite unnerves me, Such unforeseen and jadish tricks she serves me. Johann Christoph Friedrich von Schiller in "Turandot: The Chinese Sphinx".