1The audience was aghast at the news of the sudden cancellation of the concert, having waited in line for hours.
2She stood aghast at the edge of the Grand Canyon, the sheer scale and beauty of the landscape rendering her speechless.
3The documentary left viewers aghast at the extent of environmental degradation caused by human neglect and greed.
4The family was aghast when they discovered that their home had been burgled while they were on vacation.
5The news of the natural disaster left the international community aghast, prompting an outpouring of aid and support for the affected regions.