1.  meanspirited(a = adj.all) ungenerous - lacking in magnanimity; "it seems ungenerous to end this review of a splendid work of scholarship on a critical note"; "a meanspirited man unwilling to forgive"

2.  meanspirited(s = adj.all) base, mean - having or showing an ignoble lack of honor or morality; "that liberal obedience without which your army would be a base rabble"; "taking a mean advantage"; "chok'd with ambition of the meaner sort"; "something essentially vulgar and meanspirited in politics"

1.  Of a mean spirit; petty; small-minded; base; groveling; -- of people. [1913 Webster]

2.  Done for malevolent reasons; -- of deeds and actions. [WordNet 1.5]