additional

More facts or details about a subject.

An extra amount of money needed for something.

An extra advantage or good thing.

An extra amount of money that you have to pay.

An extra positive feature or benefit.

More proof to support a belief or claim.

An extra possibility of something bad happening.

An extra cost incurred in the course of doing something.

An extra duty or responsibility that is hard to bear.

An extra rule or law that limits what you can do.

An extra problem or difficulty that makes a situation more confusing.

An extra unfavorable circumstance or condition.

Something extra that makes life easier or more comfortable.