: of, relating to, or forming or serving as a base or foundation : fundamental
foundational principles/doctrines
These foundational volumes proved to be, each in its own way, enabling gestures for the growth of sophisticated theories and critical practices in African, Caribbean, and African American literatures.—Henry Louis Gates, Jr.
Property was, in a sense, foundational to culture, since English political economy rested on the private ownership of land, and the political economy, in turn, largely structured social relations.—Jill Lepore
Philosophy is a foundational discipline. Not only does it do the spadework that makes the construction of other disciplines possible; it also pays constant attention to the foundations of those disciplines as they are practiced.—Cognitive Science
foundationally adverb

Examples of foundational in a Sentence

Recent Examples on the Web
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Following its foundational years in Vietnam, POPS expanded to other markets in Southeast Asia, entering Thailand in 2016 and Indonesia in 2020. — Angelica Ang, Fortune, 22 Oct. 2026 Jacob Rodriguez, Jordyn Brooks, Chris Johnson and Phillips look like definite foundational players, and Robinson is trending in the right direction. — Barry Jackson, Miami Herald, 22 Oct. 2026 To most, Hollywell is known as a co-founder of Blackbird Raum, a foundational anarcho folk-punk band of the 2000s. — Nina Corcoran, Pitchfork, 21 Oct. 2026 Their design enables the bodysuits to be worn as foundational layering pieces and stand-alone wardrobe staples. — Lisa Lockwood, Footwear News, 21 Oct. 2026 See All Example Sentences for foundational

Word History

First Known Use

1657, in the meaning defined above

Time Traveler
The first known use of foundational was in 1657

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Cite this Entry

“Foundational.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/foundational. Accessed 27 Oct. 2026.

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