supplementary

adjective

sup·​ple·​men·​ta·​ry ˌsə-plə-ˈmen-tə-rē 

-ˈmen-trē

1

: added or serving as a supplement : additional

supplementary reading

2

: being or relating to a supplement (see supplement entry 1 sense 3) or a supplementary angle

Synonyms

• accessorial
• accessory
• appurtenant
• auxiliary
• peripheral
• supplemental

Examples of supplementary in a Sentence

a list of supplementary material for the class

the teacher's edition of the textbook comes with a lot of supplementary material

Recent Examples on the Web

Plus, Florida does not have state income tax and gives supplementary homestead exemptions to eligible seniors. —Ashley Cusick, Southern Living, 23 Oct. 2024

The mushrooms in supplementary form have become a popular alternative treatment for cancer patients. —Lana Barhum, Verywell Health, 19 Oct. 2024

Still, in scenarios where water can’t be restored or transported immediately to an area, these devices may be able to serve as a bridge or a supplementary source of water. —Emily Mullin, WIRED, 14 Oct. 2024

Additionally, state programs, non-profits, insurance, and private loans can offer supplementary aid when needed. —True Tamplin, Forbes, 11 Oct. 2024

Word History

Etymology

supplement entry 1 + -ary entry 2

First Known Use

1667, in the meaning defined at sense 1

Phrases Containing supplementary

• supplementary angle

Kids Definition

supplementary

adjective

sup·​ple·​men·​ta·​ry ˌsəp-lə-ˈment-ə-rē 

-ˈmen-trē

1

: added as a supplement : additional

2

: being or relating to a supplement or a supplementary angle

Medical Definition

supplementary

adjective

sup·​ple·​men·​ta·​ry ˌsəp-lə-ˈment-ə-rē, -ˈmen-trē 

: added or serving as a supplement

supplementary vitamins

Legal Definition

supplementary

adjective

sup·​ple·​men·​ta·​ry ˌsə-plə-ˈmen-tə-rē, -trē 

: added or serving as a supplement