This is the 10074th most frequent Polish word.
bezradna
Helpless.
Here, "bezradna" describes an emotional state of helplessness, used as an adjective for the feminine subject.
Ona czuła się bezradna wobec tej trudnej sytuacji.
She felt helpless in the face of that difficult situation.
In this sentence, "bezradna" is used metaphorically to describe a response that lacked confidence or capability.
Jego odpowiedź była tak bezradna, że nie wiedziałem, jak zareagować.
His response was so helpless that I didn't know how to react.
Here, "bezradna" describes the fly's literal incapacity to escape, highlighting its vulnerability.