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

That being said, however, arguably the most pressing challenges financial institutions may face when leveraging quantum computing revolve around integrating a fundamentally new technology into their organizations. —Scott Buchholz, Forbes.com, 3 Apr. 2025

The first possible issue, misuse, is fundamentally similar to current AI risks. —Ryan Whitwam, ArsTechnica, 3 Apr. 2025

That suggestion is fundamentally incompatible with the basic premise of equal justice under the law. —Aaron Katersky, ABC News, 2 Apr. 2025

This approach differs fundamentally from how language models operate. —Jason D. Greenblatt, MSNBC Newsweek, 2 Apr. 2025

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