Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

Thesaurus

supplementary

adjective

Synonyms and Antonyms of supplementary

1 available to supply something extra when needed

  • the teacherʼs edition of the textbook comes with a lot of supplementary material
Synonyms of supplementary

accessorial, accessory, appurtenant, auxiliary, peripheral, supplemental
Words Related to supplementary

backup, makeshift, substitute

added, additional, another, further

complementary, contributory

adjuvant, assistant, assisting, helping, supportive, tributary

secondary, subordinate, subservient, subsidiary

dispensable, excess, nonessential, superfluous, surplus, unessential
Near Antonyms of supplementary

basic, fundamental, primary, prime

all-important, essential, imperative, indispensable, integral, necessary, needed, needful, required, requisite, vital
Antonyms of supplementary

chief, main, principal

2 related to each other in such a way that one completes the other

  • regards theology and philosophy as supplementary fields of study
Synonyms of supplementary

complementary, correlative, reciprocal, supplemental
Words Related to supplementary

cooperative, mutual, symbiotic

collective, combined, common, communal, conjoint, joint, shared, united
Antonyms of supplementary

noncomplementary, nonreciprocal

Learn More about supplementary

  1. See words that rhyme with supplementary Dictionary: Definition of supplementary Medical Dictionary: Definition of supplementary Spanish Central: Translation of supplementary Nglish: Translation of supplementary for Spanish speakers Britannica English: Translation of supplementary for Arabic speakers

Seen and Heard

What made you want to look up supplementary? Please tell us where you read or heard it (including the quote, if possible).

show comments hide comments

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

repartee

amusing and light sparring with words

Get Word of the Day daily email!

TRENDING NOW

  1. synergy Mueller files Cohen details.

  2. slumgullion From the broadcast of 'It Happened on Fifth Avenue'

  3. endgame Marvel's Avengers: Endgame

SEE ALL

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Words at Play

Ask the Editors

Word Games