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protean

American  
[proh-tee-uhn, proh-tee-] / ˈproʊ ti ən, proʊˈti- /

adjective

  1. readily assuming different forms or characters; extremely variable.

  2. changeable in shape or form, as an amoeba.

  3. (of an actor or actress) versatile; able to play many kinds of roles.

  4. (initial capital letter) of, relating to, or suggestive of Proteus.


protean British  
/ ˈprəʊtɪən, prəʊˈtiːən /

adjective

  1. readily taking on various shapes or forms; variable

"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

Other Word Forms

  • proteanism noun

Etymology

Origin of protean

First recorded in 1590–1600; Prote(us) + -an

Explanation

When Picasso is described as a protean genius, it means that not only was he brilliant, but he changed the way he worked many times. Protean means able to change shape. Proteus was a Greek god who could tell the future, but when he was asked a question he didn't want to answer, he would change shapes. With someone or something protean, you get all the power of shape-shifting, plus some of the menace of a god you cannot control.

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Vocabulary lists containing protean

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.

Obergefell, a 5-4 decision, was written by the court’s most protean member, Justice Anthony Kennedy.

From The Wall Street Journal • Oct. 8, 2025

In particular, there is a confused, protean nature of conducting operations among a civilian population you are sworn to defend while simultaneously seeking to prevent them from harming you or others.

From Slate • Jun. 10, 2025

To capture Dylan in all his multifarious splendor, writer-director Todd Haynes cast six actors to portray different aspects of the songwriter’s protean genius.

From Los Angeles Times • Dec. 11, 2024

Faith Ringgold, who died Saturday at 93, was an artist of protean inventiveness.

From New York Times • Apr. 15, 2024

In addition to seeming eternal, ubiquitous, protean, and endlessly quotable, Franklin had the most sophisticated sense of timing among all the prominent statesmen of the revolutionary era.

From "Founding Brothers: The Revolutionary Generation" by Joseph J. Ellis