unstoppable
/ʌnˈstɔ.pə.bəl/ adjective B2- Unable to be stopped. · Their "greatly unstoppable fight" against the cause was a joke.· 20 January 2017, Donald Trump, Inauguration Speech When America is united, America is totally unstoppable.
Learn unstoppable in real texts
With a free account, hover any word in the library for its meaning, hear it read aloud, save words for review timed to your memory, and see how much of each book you already know.