1. (noun) a resentment strong enough to justify retaliation

• grudge
• score

1. (noun) a resentment strong enough to justify retaliation

• bitterness
• gall
• rancor
• rancour
• resentment

2. (noun) an allegation that something imposes an illegal obligation or denies some legal right or causes injustice

• allegation

3. (noun) a complaint about a (real or imaginary) wrong that causes resentment and is grounds for action

• complaint

1. (noun) a resentment strong enough to justify retaliation

• grudge
• stew