Protean

Semantic equivalence is protean as well as fuzzy: what hoi polloi find equivalent may to cognoscenti be quite distinct.

An amoeba is a protean animalcule.

Virus infection of the blood and bone marrow is probably responsible for all forms of the disease. The viral theory of origin accounts for the protean manifestations of the condition.

[…] the word's protean expressiveness has been observed in a xeroxlore item printed in Robert Anton Wilson's Playboy's Book of Forbidden Words […]

He loved to show off his protean talent.

In the intervening decades she has become a protean figure, an emblem of different things to different people, depending upon their viewpoint — a visionary, a victim, a martyr, a feminist icon, a schizophrenic, a virago, a prisoner of gender — or, perhaps, a genius, as both Plath and Hughes maintained during her lifetime.

In recent years, Europe has struggled to find the right balance between freedom of expression and the protean security concerns it faces.