The term 'resentful feeling' can be described by four different crossword solutions: ENVY (4 letters), GRUDGE (6 letters), PIQUE (5 letters), and DUDGEON (7 letters). ENVY is a feeling of discontentment or jealousy with regard to another person's possessions, qualities, or luck. A GRUDGE is a deep-seated feeling of resentment or ill will towards someone or something. PIQUE is a feeling of irritation or annoyance caused by a perceived slight or indignity. DUDGEON is a feeling of indignation or resentment. All of these words describe a resentful feeling, which is an emotion of displeasure or indignation in response to a real or imagined wrong.