Does anyone know a word describing able to be kept down

I'm trying to explain that through tough experiences, I learned that no one is unbreakable, but neither are they (word for able to be kept down), if they choose not to be. Can someone please help me find a word for this, I couldn't find one on any thesaurus sites.

hm, this is tricky, I know your sentiment but finding the perfect word is hard.

Do you mean like suppressed or overcome? I feel like they don't fit exactly in your sentence though.
Or do you mean like the opposite of unbreakable since you do have a "but" there, so like fragile?

I hoped I somewhat helped:)

The first word that came up to my mind was "tamed"

I went to word and looked up synonyms for "tamed" and there were many different choices. I hope one of them works for the meaning you want to convey! :)