fundamentally

adverb
fun·da·men·tal·ly | \ ˌfən-də-ˈmen-tᵊl-ē \

Definition of fundamentally 

: with regard to what is basic, essential, or fundamental : at a fundamental level a fundamentally honest person a fundamentally new/different approach Most theories of the internal structure of Venus begin with the assumption that the planet is fundamentally similar to the earth … —Andrew and Louise Young : in a basic or fundamental manner This "disposable" work force is the most important trend in business today, and it is fundamentally changing the relationship between Americans and their jobs. —Janice Castro

First Known Use of fundamentally

15th century, in the meaning defined above

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The first known use of fundamentally was in the 15th century

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More from Merriam-Webster on fundamentally

Spanish Central: Translation of fundamentally

Nglish: Translation of fundamentally for Spanish Speakers

Britannica English: Translation of fundamentally for Arabic Speakers

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