What is the function of で in this sentence?


If the purpose is to have the meaning "unlimitedly", Since 無制限 is an
adjectival noun we should use に to turn it into an adverb instead of で if I'm
not mistaken... ? [![enter image description
here](https://i.stack.imgur.com/eKrnA.png)](https://i.stack.imgur.com/eKrnA.png)




It seems you may be overanalyzing the phrase a little bit. Grammatically
speaking,

> 「無制限{むせいげん}で」

is just a

> "Noun + Particle"

That is to say that 「無制限で」 is not really formed by conjugation. The phrase
certainly functions adverbially, but it is **_not_** an adverb per se. You may
be letting the English translation " ** _unlimitedly_** " fool you even though
that is a valid translation.

**The function of the particle 「で」 here is to describe the situation/condition
in which an action is performed. That is indeed a fairly standard use of
「で」.**

One of my mottoes uses the same 「で」. It is 「腹{はら}ペコ **で** スーパーへ行{い}くな！」, which
means " ** _Don't go to the supermarket hungry!_** ". (That is because I would
tend to purchase too many things if I went to one hungry.)




It seems you may be overanalyzing the phrase a little bit. Grammatically
speaking,

> 「無制限{むせいげん}で」

is just a

> "Noun + Particle"

That is to say that 「無制限で」 is not really formed by conjugation. The phrase
certainly functions adverbially, but it is **_not_** an adverb per se. You may
be letting the English translation " ** _unlimitedly_** " fool you even though
that is a valid translation.

**The function of the particle 「で」 here is to describe the situation/condition
in which an action is performed. That is indeed a fairly standard use of
「で」.**

One of my mottoes uses the same 「で」. It is 「腹{はら}ペコ **で** スーパーへ行{い}くな！」, which
means " ** _Don't go to the supermarket hungry!_** ". (That is because I would
tend to purchase too many things if I went to one hungry.)

