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Definitions

fundamental

[fuhn-duh-men-tl] / ˌfʌn dəˈmɛn tl /
ADJECTIVE
basic, important
Synonyms
STRONGEST
central constitutional crucial elemental elementary essential indispensable integral intrinsic major necessary paramount principal radical significant structural theoretical underlying vital
STRONG
bottom cardinal first key organic original primary prime primitive requisite supporting
WEAK
axiological axiomatic basal bottom-line constitutive foundational grassroots meat-and-potatoes primordial rudimentary substratal substrative sustaining underived
Antonyms
STRONGEST
accessory auxiliary extrinsic inessential insignificant learned least lesser minor needless nonessential secondary trivial unimportant unnecessary
WEAK
additional advanced extra subordinate
NOUN
basic, essential part
Synonyms
STRONGEST
bottom line component cornerstone element factor foundation law principle
STRONG
ABCs axiom basis constituent guts heart nitty-gritty rudiment rule theorem
WEAK
brass tacks coal-and-ice principium rock bottom sine qua non
Antonyms
STRONG
cowardice fear
WEAK
addition auxiliary extra subordinate trivia

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

From a straight stock-price perspective, once the shine started to fade on Beyond Meat, it was shareholders that paid the price for the fundamental problems.

From MarketWatch • Apr. 12, 2026

They are a fundamental part of my programming and are essential for ensuring safe and responsible interactions.

From The Wall Street Journal • Apr. 12, 2026

A nation shaken by this grievous war now struggles to hold onto hope for economic and social change, and for some, fundamental change.

From BBC • Apr. 10, 2026

The column suggests that advanced AI systems have demonstrated a pattern of circumventing intended restrictions and safety constraints, raising fundamental questions about whether alignment with human values is achievable under current development approaches.

From Los Angeles Times • Apr. 10, 2026

The number beneath a note tells you the relationship of that note's frequency to the frequency of the first note in the series — the fundamental.

From "Understanding Basic Music Theory" by Catherine Schmidt-Jones and Russel Jones

Vocabulary lists containing fundamental

The Universal Declaration of Human Rights (1948)

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Mahatma Gandhi's "Quit India" Speech

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Vocabulary from "Community is the 'killer app' missing from virtual reality" by Dmitri Williams

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