a fault in someone's character or in a system, organization, design etc:
The legislation has a fundamental weakness.
The plan has strengths and weaknesses.
lack of strength, power, or influence
lack of power[uncountable]
weakness in the economy
the growing weakness of local government
the state of being physically weak:
weakness in the right arm
lack of determination shown in someone's behaviour:
He couldn't explain his weakness in giving in to her demands.
I dared not cry or show any sign of weakness.
his weakness of character
the condition of not being worth a lot of money
the weakness of the pound against the dollar