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Synonyms for

Supplemental

/ ˌsʌplʌˈmentʌl / / ˌsʌplʌˈmenʌl / Another word for supplemental — explore alternatives below. For syllable breakdowns and pronunciation, see this word on Syllablesworld.

Synonyms & similar words

subsidiary auxiliary supplementary

Synonyms by register

Formal

additional ancillary auxiliary subsidiary

Informal

extra added backup spare

Literary

accompanying concomitant

Antonyms

essential primary main principal core fundamental necessary

Common collocations

  • supplemental income
  • supplemental material
  • supplemental insurance
  • supplemental oxygen
  • supplemental learning
  • supplemental nutrition
  • supplemental agreement

Word family

noun supplement
verb supplement
adjective supplemental
adverb supplementally

Usage note

Often used to describe something that is added to something else to make it complete or to provide extra support. It implies that the primary item is sufficient on its own but can be improved or enhanced by the addition.

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