grudge
Definitions
A persistent feeling of ill will or resentment resulting from a past insult or injury.
To be reluctant to give, grant, or allow something.
Examples
She decided to let go of her grudge and forgive him for the past.
It is exhausting to hold a grudge against someone for so long.
He bore a deep grudge against his former boss for firing him unfairly.
Synonyms
resentment animosity bitterness rancor grievance ill-will enmity
Antonyms
forgiveness benevolence goodwill affection friendliness amity kindness