DictionaryproteanReadily changeable
adjective

protean

PROH-tee-un/ˈprəʊtiən/

Able to change form, character, or style readily.

The protean octopus readily changes shape and color across different surroundings.

Three small sequential views of the same octopus changing its shape and coloration: rounded and pale on sand, flattened and mottled against a rock, then elongated and reddish as it slips through a narrow crevice.
Etymology

Proteus could change his form at will. A word meaning “pertaining to Proteus” therefore came to describe anything readily changing its shape or character.

In context

British Library8:36
It's a fascinating, myriad, amorphous, protean entity.
The World According to Colour with James Fox

More examples

  • His protean personality makes him hard to predict.
  • The band's protean sound changes from one album to the next.
  • The artist molds the protean material into one shape after another.

Forms

protean

Similar words

versatile
Emphasizes varied abilities or uses rather than readiness to change.
adaptable
Emphasizes adjusting to circumstances rather than freely changing form.
mutable
Means capable of change without emphasizing how readily it happens.