Here are some examples:
* "The heavy rains caused widespread inundation of the coastal towns." (Flooding)
* "The company was inundated with job applications after the new CEO announced the expansion." (Overwhelmed with information)
* "He was inundated with grief after the loss of his pet." (Overwhelmed with emotion)
The word "inundation" implies a sudden and powerful surge of something, often causing disruption or chaos.