fundamentally

adverb

fun·​da·​men·​tal·​ly ˌfən-də-ˈmen-tᵊl-ē How to pronounce fundamentally (audio)
Synonyms of fundamentallynext
: 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
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Many would be in communities that had been fundamentally altered — now missing parents, friends, even entire families. Jourdan Rodrigue, New York Times, 28 May 2026 The Russian that these writers use is personalized and fundamentally changed by their local context. Sabrina Jaszi, The Dial, 28 May 2026 Released commercially in the late 1970s, Post-it Notes became one of the world’s most recognizable office products, fundamentally changing note-taking, collaboration, reminders, and workplace organization. Kaif Shaikh, Interesting Engineering, 28 May 2026 For many startups and scale-ups, especially those with sustainable business models, your customers’ needs and wants aren’t fundamentally going to change overnight. Emma Westley, Forbes.com, 28 May 2026 See All Example Sentences for fundamentally

Word History

First Known Use

15th century, in the meaning defined above

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

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Cite this Entry

“Fundamentally.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fundamentally. Accessed 4 Jun. 2026.

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