supplementary
[adjective]
Synonyms: additional, add-on, ancillary, auxiliary, extra, secondary

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English Thesaurus: more, further, supplementary, extra, additional, ...

[TahlilGaran] English Synonym Dictionary ▲

sup‧ple‧men‧ta‧ry AC /ˌsʌpləˈmentəri◂, ˌsʌplɪˈmentəri◂/ adjective
[Word Family: noun: supplement, supplementation; verb: supplement; adjective: supplementary]
provided in addition to what already exists Synonym : additional:
supplementary information

[TahlilGaran] Dictionary of Contemporary English ▲

more in addition to an amount or number:
Can I have some more coffee?
I have one more question.
It only costs a few dollars more.
further [only before noun] formal as well as the ones that you have already mentioned:
She will remain in hospital for further tests.
They waited for a further two hours.
supplementary formal in addition to the main part of something:
Supplementary information is available on request.
a supplementary question
supplementary income
extra in addition to the usual or standard cost, time, amount etc:
They let the kids stay up an extra hour.
Some stores charge extra for delivery.
Postage is extra.
additional [only before noun] more than the basic amount or the amount that you expected or agreed. Additional is more formal than extra:
An evening job would provide additional income.
There may be an additional charge for paying bills by credit card.

[TahlilGaran] English Thesaurus ▲