基本的な定義と意味 - メリアム・ウェブスター

FUNDAMENTAL Definition & Meaning - Merriam-Webster Est. 1828 Dictionary Definition adjective noun adjective 2 adjective noun Synonyms Synonym Chooser Example Sentences Word History Phrases Containing Rhymes Entries Near Cite this Entry Citation Kids Definition Kids Medical Definition Medical More from M-W Show more Show more Citation Kids Medical More from M-W Save Word To save this word, you'll need to log in. Log In fundamental 1 of 2 adjective fun·​da·​men·​tal ˌfən-də-ˈmen-tᵊl Synonyms of fundamental Take our 3 question quiz on fundamental Simple Definition A Simple Definition is available from our Learner's Dictionary to help you understand the meaning faster. 1 a : serving as a basis supporting existence or determining essential structure or function : basic a fundamental truth/belief/concept The participation of citizens is fundamental to democracy. There's a fundamental difference between the two political parties. The Constitution ensures our fundamental rights. b : serving as an original or generating source : primary a discovery fundamental to modern computers Take our 3 question quiz on fundamental 2 a : of or relating to essential structure, function, or facts : radical fundamental change also : of or dealing with general principles rather than practical application fundamental science b : adhering to fundamentalism a preacher who is evangelical, Bible-teaching, and fundamental 3 : of central importance : principal fundamental purpose such fundamental events as birth, marriage, and death 4 : belonging to one's innate or ingrained characteristics : deep-rooted her fundamental good humor 5 : of, relating to, or produced by the lowest component of a complex vibration (see vibration sense 1 ) Quiz: Which word is closest in meaning to fundamental ? fundamental 2 of 2 noun 1 : something fundamental especially : one of the minimum constituents without which a thing or a system would not be what it is Reading is a fundamental of education. learning the fundamentals of math 2 a : the principal musical tone produced by vibration (as of a string or column of air) on which a series of higher harmonics is based b : the root of a chord 3 : the harmonic component of a complex wave that has the lowest frequency and commonly the greatest amplitude Synonyms of fundamental Relevance Adjective basic rudimentary elementary introductory Noun principles elements grammar See All Synonyms & Antonyms in Thesaurus Choose the Right Synonym for fundamental essential , fundamental , vital , cardinal mean so important as to be indispensable. essential implies belonging to the very nature of a thing and therefore being incapable of removal without destroying the thing itself or its character. conflict is essential in drama fundamental applies to something that is a foundation without which an entire system or complex whole would collapse. fundamental principles of algebra vital suggests something that is necessary to a thing's continued existence or operation. cut off from vital supplies cardinal suggests something on which an outcome turns or depends. a cardinal rule in buying a home Examples of fundamental in a Sentence Adjective The Constitution ensures our fundamental rights. There's a fundamental difference between these two political parties. These ideas are of fundamental importance. The revolution brought about a fundamental change in the country. We need to make some fundamental changes in the way we do business. We need to address these problems on a more fundamental level. Noun all students at the school of music must take a course in the fundamentals of their chosen art See More Recent Examples on the Web Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback . Adjective Yet, the crucible was also fundamental . — Megan Feringa, New York Times , 1 May 2026 For Kazimir Malevich, the black square was, in a sense, painting’s building block—a way to strip art down to its most fundamental form. — Emily Watlington, ARTnews.com , 1 May 2026 Noun This fun, beginner-friendly class teaches the fundamentals of Texas Hold’em, giving you the confidence to join a friendly game. — Kris Slugg, San Diego Union-Tribune , 2 May 2026 Her dissent was not only concerned about partisanship; Kagan warned that the Callais decision threatens the fundamentals of how our constitutional democracy works. — Jeannie Suk Gersen, New Yorker , 2 May 2026 See All Example Sentences for fundamental Word History Etymology Adjective Middle English, borrowed from Late Latin fundāmentālis "serving as a foundation," from Latin fundāmentum "foundation, basis" + -ālis -al entry 1 — more at fundament Noun derivative of fundamental entry 1 First Known Use Adjective 15th century, in the meaning defined at sense 1b Noun 1617, in the meaning defined at sense 1 Time Traveler The first known use of fundamental was in the 15th century See more words from the same century Phrases Containing fundamental fundamental group fundamental law fundamental particle Rhymes for fundamental accidental compartmental continental detrimental elemental governmental incidental incremental instrumental interdental monumental nonjudgmental See All Rhymes for fundamental Browse Nearby Words fundament fundamental fundamental bass See all Nearby Words Cite this Entry Style MLA Chicago APA Merriam-Webster “Fundamental.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/fundamental. Accessed 5 May. 2026. Copy Citation Kids Definition fundamental 1 of 2 adjective fun·​da·​men·​tal ˌfən-də-ˈment-ᵊl 1 : being or forming a foundation : basic , essential a discovery fundamental to modern science our fundamental rights 2 : of or relating to essential structure or function : radical fundamental change 3 : of, relating to, or produced by the lowest part of a complex vibration 4 : of central importance : principal fundamental purpose fundamentally -ᵊl-ē adverb fundamental 2 of 2 noun 1 : something fundamental : a basic part fundamentals of arithmetic 2 : the part of a complex wave that has the lowest frequency and commonly the greatest amplitude Etymology Adjective Middle English fundamental "serving as a base or source of support," from Latin fundamentalis "of a foundation," from fundamentum "foundation," derived from fundus "bottom, base" — related to found entry 2 , fund Medical Definition fundamental noun fun·​da·​men·​tal ˌfən-də-ˈment-ᵊl : the principal musical tone produced by vibration (as of a string or column of air) on which a series of higher overtones is based More from Merriam-Webster on fundamental Nglish: Translation of fundamental for Spanish Speakers Britannica.com: Encyclopedia article about fundamental Last Updated: 3 May 2026 - Updated example sentences Love words? 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