aghast Copy link • aghast: stŭpĕfactus: men gaze a. upon him while speaking, homines eum stupefacti dicentem intuentur, Cic. Esp. in phr. to stand or be a.; obstŭpesco, stŭpui, 3: I was a. at the sight; my hair stood on end, obstupui, steteruntque comae, Virg.: v. amazed, astonished.