Learn English – A word for “desire to achieve more”

single-word-requests

I'm looking for a word which describes "constant desire to achieve more, to gain something, doesn't matter what".

It can't be tied to one goal, like ambition or aspiration. It can be adjective.

Samples:

"I can't rest, my ' ' is driving me forward" OR
"I can't rest, I am too ' ' for that"

EDIT: Okay, I'll try to explain better. Let's say I have 2 choices to make: to eat a salad, OR to eat a chocolate bar. To earn some money OR to watch NETFLIX. So, I choose healthy food and I choose money. I always choose what I think is the best option which leads to maximum gain (subjectively speaking). And I want maximum gain, always. How is that "wanting" called ? Words "ambitiousness" or "driven" don't exactly fit

Best Answer

From the question:

I'm looking for a word which describes "constant desire to achieve more, to gain something, doesn't matter what".

I would use insatiable:

[Merriam-Webster]
: incapable of being satisfied : QUENCHLESS
// had an insatiable desire for wealth

To paraphrase the example sentence:

I can't rest. My desire for more is insatiable.

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