资料来源 : Webster's Revised Unabridged Dictionary (1913)

Resentful \Re*sent"ful\ (-f?l), a.
   Inclined to resent; easily provoked to anger; irritable. --
   {Re*sent"ful*ly}, adv.

资料来源 : WordNet®

resentfully
     adv : with resentment; in a resentful manner; "the best doctors
           would stay resentfully out of the national service,
           refusing to become the minions of a Minister"