"We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness" - US Declaration Of Independence
Unalive is just like alive- but the opposite. It’s a term to use it when u want to say ironically that someone wants to „kill you“ (unalive you). Or if u want to kill ur friend (if he or she was a backstabber or something like that) Then u just say: IM GONNA UNALIVE THIS MOTHERF*CKER!!!