1. flooded with an excessive or overwhelming amount of water or liquid
Usage: past participle used as adjective; typically describes a location or area
2. overwhelmed or swamped with an excessive amount of something non-physical
Usage: figurative use; common in informal contexts

Examples

• The basement was overflooded after the heavy rainfall.
• The overflooded streets made it impossible to drive through the neighborhood.
• The emergency room was overflooded with patients during the flu season.
• Her inbox became overflooded with spam emails.
• The overflooded market couldn't handle the sudden surge in demand.
• After the dam broke, the valley was completely overflooded.