I don't think a free lance writer can be unemployed, if he or she is writing. I checked an online dictionary. Meaning # 1 is "to hire." Meaning # 2 is "to keep busy." Meaning # 3 is "to use." Meaning # 4 is "to occupy or devote."
If you don't have a contract, you are unemployed in meaning # 1, but not in meanings # 2, #3 and #4.
I have almost never written under contract, because I don't like the pressure. Instead, I write the story I want to write and then try to sell it. In most cases, I do manage to sell it, though I have never made the kind of money that other Wyrdsmiths have and do.
I told one of my editors years ago that my income from writing paid for conventions and Laura Ashley skirts. I no longer buy Laura Ashley clothing. So maybe now -- in a good year -- my income from writing pays for conventions and J. Jill clothing.
Because I don't like pressure, I write slowly. I think a bit of pressure might help me write more quickly and more, which is one reason I have two contracts right now.
In any case, I don't think of myself as unemployed, but rather as self-employed.