Einsteinian

adjective

Ein·stein·ian īn-ˈstī-nē-ən

: of or relating to Albert Einstein or his theories

Einsteinian physics

Word History

First Known Use

1919, in the meaning defined above

Time Traveler

The first known use of Einsteinian was in 1919

See more words from the same year

Cite this Entry

Style

“Einsteinian.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Einsteinian. Accessed 8 Mar. 2026.

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Last Updated: 24 Feb 2026 - Entry added

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