Unfortunately, this very particular pair of meanings is always going to be sabotaged by hyperbole. Not the words, but the actual meanings. Whatever word we ha

Unfortunately, this very particular pair of meanings is always going to be sabotaged by hyperbole. Not the words, but the actual meanings. Whatever word we have for "this is [truthfully] [adjective]", they're always going to use the word for "truthful" to give something added punch. Specifically in the sense of suggesting a quality has become so extreme that the metaphor is no longer an exaggeration. Part of it is we humans just love metaphors come to life. Godzilla "literally" was taller than a skyscraper. Superman "literally" was stronger than a freight train. Tolkien was disappointed enough as a kid in Dunsinane forest "coming to life and walking" (by a bunch of men chopping off branches for camouflage, in MacBeth), that he wanted to do a story where the trees literally walked, without any metaphorical fine print.