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Synonyms

foundational

American  
[faun-day-shuh-nl] / faʊnˈdeɪ ʃə nl /
Rarely foundationary

adjective

  1. of or relating to the basis or groundwork on which something rests or is built; needing to be understood or established at the beginning.

    We believe that fostering a strong local community is a foundational component of our inner-city scholarship program, guiding everything else we do.


Other Word Forms

Etymology

Origin of foundational

foundation ( def. ) + -al 1 ( def. )

Vocabulary lists containing foundational

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The teacher says the lessons will be tailored to "different ages and stages" with younger pupils needing to be focused on foundational knowledge and critical thinking skills before moving on to practical uses of AI.

From BBC ● Oct. 5, 2026

WSJ Leadership Institute: You say that there is still some foundational work remaining before you can fully leverage AI, but how have you used AI so far?

From The Wall Street Journal ● Sep. 30, 2026

“We believe that SPCX’s unrivaled launch capabilities represent the foundational competitive advantage that enables all other parts of its business,” Godyn said in a note to clients, labeling the recent Starship mission a “major” milestone.

From MarketWatch ● Sep. 29, 2026

“Having stable, affordable housing is foundational to having a better life in Costa Mesa.”

From Los Angeles Times ● Sep. 22, 2026

In this sense, statistics is to probability as engineering is to physics—an applied science based on a more intellectually stimulating foundational discipline.

From "Innumeracy: Mathematical Illiteracy and Its Consequences" by John Allen Paulos

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