(of a pleading, an affidavit, etc.) added to furnish what is lacking or missing.


anything that is supplemental: supplementals attached to the bill in committee.

Origin of supplemental

First recorded in 1595–1605; supplement + -al1
Related formssup·ple·men·tal·ly, adverbnon·sup·ple·men·tal, adjectivenon·sup·ple·men·tal·ly, adverbpre·sup·ple·men·tal, adjectiveun·sup·ple·men·tal, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for supplemental

Contemporary Examples of supplemental

Historical Examples of supplemental

Word Origin and History for supplemental

c.1600, from supplement + -al (1). Related: Supplementally.

Online Etymology Dictionary, © 2010 Douglas Harper