Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “fundamental”

fundamental

adjective    /ˌfʌn·dəˈmen·təl/
being the most basic or most important thing on which other things depend: fundamental beliefs/principles We need to make fundamental changes in the way we treat our environment. fundamentals    /ˌfʌn·dəˈmen·təlz/ plural noun In the early grades, children learn the fundamentals of reading. fundamentally    /ˌfʌn·dəˈmen·təl·i/ adverb [not gradable] Their economy was fundamentally (= basically) in good shape.
(Definition of fundamental adjective from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of fundamental

More American English definitions for “fundamental”

Definitions of “fundamental” in other dictionaries

Word of the Day

neighbourly

friendly or helpful

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More