I'd like to use the word "unchainable" in the context of a short novel, but I see that such a word is not popular. Plus maybe its meaning could be misunderstood, as I want it to mean "that cannot be chained", and refer it to a person. An expedient to mean "no chain can tie her up", with one only word, and maybe also in a somehow poetic sense/ license.
What do you think? Would you understand it as I mean it? Other suggestions?