Synonyms of resentful

1 Syllable
hard, sour, dour, cold, hurt, chill
2 Syllables
jealous, angrier, anti, huffier, scrappy, unkind, catty, huffy, wreakful, surly, angriest, angry, nasty, bitter, huffish, miffed
3 Syllables
complaining, pugnacious, jaundiced, frustrated, adverse, viperous, contentious, contrary, malicious, indignant, opposed, warlike, oppugnant, unfriendly, vitriolic, spiteful, militant, ornery, rancorous, alien, allergic, virulent, unslaked, hateful, malignant
4 Syllables
bellicose, belligerent, malevolent, possessory, unsociable, ill-humored, embittered, ill-disposed, irritable, unwelcoming, inimical, preconceived, unpropitious, revengeful, vindictive, disapproving, opposite, acrimonious
5 Syllables
unsympathetic, unfavorable, inhospitable, competitive, unindifferent
6 Syllables
oversensitive, argumentative