Did you know?

Click any word in a definition or example to find the entry for that word

fundamentally - definition and synonyms


What are red words?

90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.



The thesaurus of synonyms and related words is fully integrated into the dictionary. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning.

adverb fundamentally pronunciation in British English /ˌfʌndəˈment(ə)li/
  1. 1
    in a very important or basic way

    The Internet has fundamentally changed the way people communicate with one another.

    a choice between two fundamentally different concepts

    fundamentally flawed/wrong:

    His entire approach to the problem is fundamentally flawed.



used to describe something which is done more carefully and over a longer period of time …

BuzzWord Article

Open Dictionary


the practice of giving birth in the presence of several friends and relatives

add a word


A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today.

global English and language change from our blog
Macmillan learn live love play