He that is angry without a cause must be pleased without amends.

The proverb places responsibility for an unfounded grievance on the person who is angry. If no one has done them a wrong, no one owes them a remedy.

It urges a person to reconsider an unjustified reaction and recover their good humor on their own, rather than waiting for an apology or compensation.

Use the proverb when someone expects an apology or other remedy for an offense that has not actually occurred. It can sound dismissive if the reason for their anger has not been fairly considered.