* Adjective: Describing a noun, meaning lacking power or strength.
* Noun: Referring to the state of being powerless.
* Verb: (archaic) meaning to make powerless or weak.
Examples:
* Adjective: "He felt powerless to stop the disaster."
* Noun: "They lived in a state of utter powerlessness."
* Verb: (archaic) "The king was powerless to prevent the rebellion."
To determine the correct part of speech, you need to look at the sentence it is used in and consider its function.