become dazed, be amazed, be brainless
Stupor is a state in which someone's mind and senses are dulled; consequently, they are unable to think clearly or act normally.
A stupendous event or accomplishment is amazing, wonderful, or spectacular.
a feeling of stupefied astonishment
make dull or stupid or muddle with drunkenness or infatuation
in a state of mental numbness especially as resulting from shock
a poor ability to understand or to profit from experience
Differentiated vocabulary for your students is just a click away.