1. lacking the ability, strength, or authority to act or influence events
2. without electrical power or energy

Examples

• The citizens felt powerless against the corrupt government.
• She was powerless to stop the accident from happening.
• The storm left thousands of homes powerless for days.
• He felt powerless in the face of such overwhelming odds.
• The powerless engine refused to start.
• Without evidence, the lawyer was powerless to defend his client.
• The entire neighborhood remained powerless after the blackout.