Fundamental Meaning

/ˌfʌn.dəˈmɛn.təl/
B2

Definition, CEFR level B2, pronunciation, examples, and quiz.

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nounA basic truth, elementary concept, principle, rule, or law. An individual fundamental will often serve as a building block used to form a complex idea.

nounA collection of essential component ideas that are often grouped together to serve as the foundational basis of a complex idea.

There is a fundamental difference between your opinion and mine.
Fundamental instincts will not go away.
The fundamental principles of scientific method
Synonyms:
CEFR Practice Quiz
Understanding basic math is ____ for solving complex problems in physics.
CEFR Practice Quiz (Alternate)
Quality education is considered a ____ right that should be accessible to all children around the world.

From Late Latin fundamentālis, from Latin fundamentum (“foundation”), from fundō (“to lay the foundation (of something), to found”), from fundus (“bottom”), from Proto-Indo-European *bʰudʰmḗn.

"When any one offers me a compleat Catalogue of his Fundamentals, he does not unreaſonably demand me to quit mine for nothing[…]" — 1722, John Locke, The Works of John Locke ...: With Alphabetical Tables ..., page 572:
"Personal leadership is a fundamental of successful government." — 1928, Franklin D. Roosevelt, The Happy Warrior Alfred E. Smith, Houghton Mifflin, →OCLC, →OL, page 28:
"Seeing the British establishment struggle with the financial sector is like watching an alcoholic […]. Until 2008 there was denial over what finance had become. […] But the scandals kept coming, […]. A broad section of the political class now recognises the need for change but remains unable to see the necessity of a fundamental overhaul. Instead it offers fixes and patches." — 2013 June 28, Joris Luyendijk, “Our banks are out of control”, in The Guardian Weekly, volume 189, number 3, page 21:

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CEFR Practice Quiz
Understanding basic math is ____ for solving complex problems in physics.
CEFR Practice Quiz (Alternate)
Quality education is considered a ____ right that should be accessible to all children around the world.

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