əd.ˈȯl, əˈtȯl, ad.ˈȯl adverb (or adjective)
: in any way or respect : to even the least extent or degree : under any circumstances — used chiefly for emphasis especially in negative, conditional, or interrogative sentences or phrases
he has no ambition at all
not at all likely
wherever an at all Catholic culture exists — R.G.Davis