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


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.


Origin of fundamental

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

OTHER WORDS FROM fundamental

Example sentences from the Web for fundamental

British Dictionary definitions for fundamental

/ (ˌfʌndəˈmɛntəl) /


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


Derived forms of fundamental

fundamentality or fundamentalness, noun