Indeed the word never appears in the entire document. However as you said, it is implied, and quite strongly. Rights not listed are reserved to the people and the states as we know, leaving too much wiggle room in my opinion, I always found that language a little disconcerting. If to the states, that gives them great authority, but if to the people, as in individually OR collectively, it is they who are in charge of this plethora of rights that couldn’t possibly all be listed. It can be a tough question, is it the people, the states or both and why? Perhaps if they offered some broad categories of unlisted rights that surely exist and delineated which categories might belong to states and which to individuals it would eliminate a lot of arguments and SCOTUS court cases.
Or maybe I’m just rambling in a stream of consciousness line of BS lol.
