fundamental

[ fuhn-duh-men-tl ]
/ ˌfʌn dəˈmɛn tl /

adjective

serving as, or being an essential part of, a foundation or basis; basic; underlying: fundamental principles; the fundamental structure.
of, relating to, or affecting the foundation or basis: a fundamental revision.
being an original or primary source: a fundamental idea.
Music. (of a chord) having its root as its lowest note.

noun

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Origin of fundamental

1400–50; late Middle English < Medieval Latin fundāmentālis of, belonging to a foundation. See fundament, -al1

SYNONYMS FOR fundamental

OTHER WORDS FROM fundamental

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for non-fundamental

fundamental
/ (ˌfʌndəˈmɛntəl) /

adjective

of, involving, or comprising a foundation; basic
of, involving, or comprising a source; primary
music denoting or relating to the principal or lowest note of a harmonic series
of or concerned with the component of lowest frequency in a complex vibration

noun

Derived forms of fundamental

fundamentality or fundamentalness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012