meanspirited

(a) 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
ungenerous,
(s) 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
- chok'd with ambition of the meaner sort - Shakespeare
- something essentially vulgar and meanspirited in politics
mean, base,

ungenerous mean base

generous

meanspiritedly