meanspirited

adjective

1. 1

   lacking in magnanimity

   it seems ungenerous to end this review of a splendid work of scholarship on a critical note"- Times Litt. Sup.

   a meanspirited man unwilling to forgive

2. 2

   having or showing an ignoble lack of honor or morality

   that liberal obedience without which your army would be a base rabble"- Edmund Burke

   taking a mean advantage