: 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