"Proteiform" is a word in ENGLISH

proteiform ENGLISH
Definition:

Changeable in form; resembling a Proteus, or an amoeba.

Few words of positivity

How can a man’s candour be seen in all its lustre unless he has a few failings to talk of? But he had an agreeable confidence that his faults were all of a generous kind—impetuous, arm-blooded, leonine; never crawling, crafty, reptilian.

George Eliot, Adam Bede

WORD SUGGESTIONS
Laugh your heart out.

Why was the cowboy a lot of laughs?He was always horsing around.

mutability ENGLISH

The quality of being mutable, or subject to change or alteration, either in form, state, or essential character; susceptibility of …

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mutable ENGLISH

Capable of alteration; subject to change; changeable in form, qualities, or nature.

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