Meaning of FUNDAMENTAL in English

FUNDAMENTAL

/ ˌfʌndəˈmentl; NAmE / adjective , noun

■ adjective

1.

serious and very important; affecting the most central and important parts of sth

SYN basic :

There is a fundamental difference between the two points of view.

A fundamental change in the organization of health services was required.

a question of fundamental importance

2.

fundamental (to sth) central; forming the necessary basis of sth

SYN essential :

Hard work is fundamental to success.

3.

[ only before noun ] ( physics ) forming the source or base from which everything else is made; not able to be divided any further :

a fundamental particle

■ noun

[ usually pl. ] a basic rule or principle; an essential part :

the fundamentals of modern physics

He taught me the fundamentals of the job.

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WORD ORIGIN

late Middle English : from French fondamental , or late Latin fundamentalis , from Latin fundamentum , from fundare to found.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.