stupefying

1. so surprisingly impressive as to stun or overwhelm;

"such an enormous response was astonishing"

"an astounding achievement"

"the amount of money required was staggering"

"suffered a staggering defeat"

"the figure inside the boucle dress was stupefying"

2. making physically stupid or dull or insensible;

"a stupefying blow to the head"

"the stupefying effects of hemp"

3. shocking with surprise and consternation;

"the stupefying impact of the tragedy"