To resent something is to feel anger or bitterness toward it. You might resent someone who has treated you poorly.

To resent is a strong, negative feeling. You may resent the accusation that you were stealing cookies, or when a teacher yelled at you for whispering, even though everyone else was too. You might resent a friend who has more money or friends than you. Lots of people resent celebrities because they're famous and wealthy. If your friend borrowed a sweater and didn’t return it, you would probably resent it. Resenting is the opposite of being grateful.

Definitions of resent
  1. verb
    feel bitter or indignant about
    “She resents being paid less than her co-workers”
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    grudge, stew
    bear a grudge; harbor ill feelings
    type of:
    have or feel a dislike or distaste for
  2. verb
    wish ill or allow unwillingly
    synonyms: begrudge
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    wish, wish well
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