empty-handed; with nothing but one's bare hands
Describes a state of having no weapons, tools, or resources; literally 'bare hands and empty fists'. Often used in contexts of starting something from scratch or facing a challenge unprepared.
He started his business with nothing but his bare hands.
penniless; without capital
Specifically refers to having no money or financial backing, often when starting a venture. The second gloss 'having no capital (for starting a business)' is a common application.
It's tough to start a company without any capital.