fundamentally

adverb

fun·​da·​men·​tal·​ly ˌfən-də-ˈmen-tᵊl-ē 

: 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

Examples of fundamentally in a Sentence

Recent Examples on the Web

The Nationals believe, fundamentally, in raising the farm system floor. — Spencer Nusbaum, New York Times, 16 Sep. 2026

The way people search for products and evaluate brands has fundamentally shifted. — Susan Ganeshan, Forbes.com, 16 Sep. 2026

With lawmakers increasingly tying the technology to controversial pricing practices, the retail giant is making the case that ESLs won’t fundamentally change how prices are set. — Alex Vuocolo, Fortune, 15 Sep. 2026

But Champagne also said the geopolitical landscape has fundamentally shifted. — Rob Gillies, Los Angeles Times, 15 Sep. 2026

Word History

First Known Use

15th century, in the meaning defined above

Rhymes for fundamentally

• accidentally
• detrimentally
• governmentally
• incidentally
• incrementally
• instrumentally
• sentimentally
• temperamentally
• coincidentally
• environmentally
• experimentally
• mentally