Synonyms for Supplementary:
further, extra, completing.
in addition, additional, supplemental.
auxiliary, added, extra.
n.in addition, further, besides, together with something, as well, also, too. •supplementary (noun)
secondary, subsidiary, additional, supplemental, auxiliary, added.
Usage examples for supplementary
If you will now be so good as to cast your eye over the copy enclosed, what follows the present sentence, will be some details, supplementary to that only, necessary for your information, but not proper for me to state to Mr. Jay. – Memoir, Correspondence, And Miscellanies, From The Papers Of Thomas Jefferson by Thomas Jefferson