Extra and Fundamental

Opposite meaning words

Extra noun - Something adding to pleasure or comfort but not absolutely necessary.

Usage example: the motel is clean and comfortable, but there are no extras

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Fundamental is an antonym for extra in accessory topic.

Fundamental noun - Any factor that could be considered important to the understanding of a particular business.

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Extra is an antonym for fundamental in topics: central, basic.

In their parody of Star Trek, Kirk suggests dumping all of their extra mass in order to allow their ship to move with greater velocity against the black hole, and Spock reprimands him as "that is not how spaceships work"... That's the fundamental theory of rocketry, actually.

Source: Reality Is Unrealistic / Film

Cite this Source

Fundamental and Extra. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/extra/fundamental

Extra & Fundamental. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/extra/fundamental>.

Fundamental or Extra. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/extra/fundamental.

Google Ngram Viewer shows how "extra" and "fundamental" have occurred on timeline