The meaning of SUPPLEMENTARY is added or serving as a supplement : additional. How to use supplementary in a sentence.

If an angle is supplementary to another angle, it forms 180 ° when combined with it.

1. Also, supplemental. of the nature of or forming a supplement; additional. n. 2. a person or thing that is supplementary.

Definition of supplementary adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Supplementary things are added to something in order to improve it. ...the question of whether or not we need to take supplementary vitamins. Provide them with additional background or with …

supplementary, adj. & n. meanings, etymology, pronunciation and more in the Oxford English Dictionary

Aug 7, 2025 · supplementary (comparative more supplementary, superlative most supplementary) Additional; added to supply what is wanted. quotations

Synonyms for SUPPLEMENTARY: auxiliary, additional, supplemental, accessory, peripheral, makeshift, accessorial, appurtenant; Antonyms of SUPPLEMENTARY: main, principal, chief, …

(also US supplemental) Add to word list added to something: supplementary materials

Answers for supplementary(9) crossword clue, 9 letters. Search for crossword clues found in the Daily Celebrity, NY Times, Daily Mirror, Telegraph and major publications. Find clues for …