adjective

additional

Extra; added to what already exists.

We need additional chairs for the guests arriving after dinner.

Etymology

Latin additio named a putting to or adding. The adjective identifies something supplied on top of an existing amount or set, extending what is already there.

More examples

  • The report includes additional information in an appendix.
  • There is no additional charge for delivery.
  • She asks for additional time to finish the assignment.

Similar words

extra
The more informal general equivalent for something added.
supplementary
Suggests something supplied to complete or improve existing material.