FOUNDATIONAL
Meaning of FOUNDATIONAL in English
(ˈ)fau̇n|dāshən ə l, -shnəl adjective
: forming or serving as a foundation : fundamental
• foun·da·tion·al·ly - ə l]ē, -əl], ]i\ adverb
Webster's New International English Dictionary.
Новый международный словарь английского языка Webster.
2012