"Promotive" is a word in ENGLISH

promotive ENGLISH
Definition:

Tending to advance, promote, or encourage.

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.

advancive ENGLISH

Tending to advance.

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furthersome ENGLISH

Tending to further, advance, or promote; helpful; advantageous.

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ministerial ENGLISH

Tending to advance or promote; contributive.

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