Words describing being arrogant but in a positive way?

Question

Are there any Italian words which describe being arrogant as in wanting to do stuff or achieve something regarded as hard by others, with such word or words having a positive connotation?

For instance: ambizioso. Here is what the Devoto Oli has to say about it:

1. Dominato dall'ambizione {so basically as though "possessed" by ambition: I read this as a negative connotation. And then the example:} pochi ambiziosi dichiareranno giustizia e pubblica necessità quello che non è se non capriccio e ambizione loro {so, as though by chance, the example also points out a negative attitude towards the (so-called) "ambiziosi", and then...}

2. Che rivela un eccesso di ottimismo e presunzione (eg. progetto ambizioso).

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What I am finding is that many, if not most, Italian words involving ambition as part of their dictionary definitions, end up having at least one quasi-neutral and one totally negative hue.

For instance, the saying "andarono come i pifferi di montagna" is an example of this: it is used to depict people who were too sure of their strengths {hence, arrogant}, and were subsequently defeated. This is just one example of how the Italian language always tends to view arrogance in a negative light.

Is it not so?

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EDIT:

baldanza:

• disinvolta fiducia in sé stesso e nella fortuna: la naturale baldanza dei giovani; anche, presunzione, spavalderia.

Answer 1

While not commonly used (it's a bit of an high/formal/obsolete term), I'd say that the best word to use for your meaning would be "baldanzoso" (from the substantive "baldanza"). I can't really associate it with a negative perception of the term.

EDIT: As pointed out in the comment, a more commonly used term is "audace" (from "audacia"). It's also more generic: the "baldanza" is the "audacia" typical of the youth, while the latter is generic.