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Definition of supplemental
supplemental
/ˌsʌp.ləˈmɛn.təl/
sup · ple · men · tal
Adverb:supplementally
•Plural:supplementals
supplemental Lexical Profile
CEFR
B2
Grade
8
Tier
2
Usage
Top 10k
Syllables
4
supplemental Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Provided in addition to what is already present or available in order to complete, enhance, or make up for a deficiency.
Example
"The professor provided supplemental reading materials for students who wanted to explore the historical topic in greater depth."
Synonyms
View all synonyms for supplemental Antonyms
View all antonyms for supplemental• noun
1
A supplemental budget, pleading, insurance policy, or document added to an original or primary one.
Example
"The committee approved an emergency supplemental to fund disaster relief operations through the end of the fiscal year."
Synonyms
View all synonyms for supplemental• Rhymes for supplemental
• Nearby Words
Word Origin & Etymology
Formed in the early 17th century from the noun 'supplement' plus the adjectival suffix '-al', ultimately tracing back to the Latin 'supplementum' (that which fills up), from 'supplere' (to fill up or complete).
Cite this Entry
Wordmom. (2026). Definition of Supplemental. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/supplemental