Synonyms of supplementary

supplementary

adjective

1

as in auxiliary

available to supply something extra when needed

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

Synonyms & Similar Words

• auxiliary
• additional
• accessory
• supplemental
• peripheral
• accessorial
• added
• complementary
• makeshift
• appurtenant
• further
• another
• backup
• contributory
• assistant
• assisting
• subsidiary
• supportive
• subordinate
• adjuvant
• surplus
• excess
• substitute
• tributary
• superfluous
• secondary
• nonessential
• unessential
• dispensable
• helping
• subservient

Antonyms & Near Antonyms

• main
• basic
• principal
• primary
• chief
• necessary
• fundamental
• requisite
• prime
• essential
• integral
• vital
• needful
• required
• imperative
• needed
• indispensable
• all-important

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• main
• basic
• principal
• primary
• chief
• necessary
• fundamental
• requisite
• prime
• essential
• integral
• vital
• needful
• required
• imperative
• needed
• indispensable
• all-important

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2

as in complementary

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

regards theology and philosophy as supplementary fields of study

Synonyms & Similar Words

• complementary
• supplemental
• reciprocal
• mutual
• collective
• combined
• correlative
• communal
• joint
• cooperative
• shared
• united
• symbiotic
• common
• conjoint

Antonyms & Near Antonyms

• nonreciprocal
• noncomplementary

• nonreciprocal
• noncomplementary