supplementary

American  

[suhp-luh-men-tuh-ree] / ˌsʌp ləˈmɛn tə ri /

adjective

1. Also of the nature of or forming a supplement; additional.

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noun

plural

supplementaries

1. a person or thing that is supplementary.

supplementary British  

/ -trɪ, ˌsʌplɪˈmɛntərɪ /

adjective

1. Also (less commonly): supplemental.  forming or acting as a supplement

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noun

1. a person or thing that is a supplement

Other Word Forms

• nonsupplementary adjective
• presupplementary adjective
• supplementarily adverb
• unsupplementary adjective

Etymology

Origin of supplementary

First recorded in 1660–70; supplement + -ary

Example Sentences

Oil and gas firms operating in the North Sea pay a 30% corporation tax on their profits and a supplementary 10% rate on top of that.

From BBC

We count roughly 20 stimulus packages since 1992, in the form of “supplementary” budgets.

From The Wall Street Journal

This supplementary tier could also contribute to our low grade because at any moment only half of private sector workers are participating in such a plan.

From MarketWatch

Edesia’s latest product is a supplementary food for infants in the first two years to make sure they get all the nutrients they need.

From MarketWatch

“If the total amount for JGB issuance is to grow further after this fiscal year’s supplementary budget, there will be the risk of further rises” in JGB yields, the rates strategist says.

From The Wall Street Journal

Related Words

• ancillary
• auxiliary
• increased