complemental

/ˌkɑmpləˈmɛntl/
adjective
  1. Serving to complete or make something whole; supplementary.
    • The new wing of the museum is complemental to the original building, adding gallery space.
    • The two reports are complemental, each covering different aspects of the same issue.
    • Her skills in design are complemental to his expertise in engineering.
What does "complemental" mean? | whatsthatwordmean | whatsthatwordmean