We found 12 dictionaries that define the word foundational:

General (7 matching dictionaries)

1. foundational: Merriam-Webster
2. foundational: Oxford Learner's Dictionaries
3. foundational: Collins English Dictionary
4. Foundational, foundational: Wordnik
5. foundational: Wiktionary
6. foundational: Dictionary.com
7. foundational: TheFreeDictionary.com

Business (2 matching dictionaries)

8. foundational: Merriam-Webster Legal Dictionary
9. foundational: Legal dictionary

Computing (1 matching dictionary)

10. foundational: Encyclopedia

Medicine (1 matching dictionary)

11. foundational: Medical dictionary

Miscellaneous (1 matching dictionary)

12. foundational: Idioms

(Note: See foundation as well.)

Definitions from Wiktionary (foundational) ▸ adjective:  Of or relating to a foundation or foundations. ▸ adjective:  Fundamental or underlying. Similar: foundationalistic, foundationalist, fundamental, groundlaying, foundationary, postfoundational, based, basal, architectonic, elementary, more... Opposite: superficial, superficiality Types: basic, essential, key, critical, vital, indispensable, more... Phrases: Foundational Model of Anatomy, foundational framework, foundational knowledge, foundational aspects of, foundational work, more... Colors:     red,     blue,     yellow,     black,     white, more... ▸ Words similar to foundational ▸ Usage examples for foundational ▸ Idioms related to foundational ▸ Wikipedia articles (New!) ▸ Popular nouns described by foundational ▸ Words that often appear near foundational ▸ Rhymes of foundational ▸ Invented words related to foundational