Answer: resentful

AnswerCrossword Clue
RESENTFULFeeling ill will
RESENTFULSulky
RESENTFULDispleased
RESENTFULLike Cain, toward Abel
resentfulFeeling or expressing bitterness or indignation at having been treated unfairly
resentfulfull of resentment also RESENTIVE