chaos (n)

His presentation was in chaos. I couldn’t understand what he meant.
In the wake of the earthquake, the city was plunged into chaos as buildings crumbled and emergency services scrambled to respond.
The sudden cancellation of the event caused chaos among the attendees, who were left confused and disappointed.
The experiment unexpectedly resulted in chaos in the laboratory, with equipment malfunctioning and data being lost.
The political unrest led to a state of chaos in the capital, with protests, clashes, and a general sense of uncertainty prevailing.