Definition from macmillandictionary.com
Your browser doesn’t support HTML5 audio
The illness had left him too weak to speak.
Weak stomach muscles can lead to back problems.
He has always had a weak heart.
Workplace bullies pick on weak and vulnerable colleagues.
We are in a weak bargaining position.
I was feeling weak and agreed to go.
He had a weak character, but not an evil one.
They can always improve by working on their weak points.
The report was criticized for being weak on detail.
If you are a weak speller, someone should check the letter.
The floorboards are weak in some places.
a weak gravitational field
a weak chin
The case is weak because it is based on very little real evidence.
The Scottish Secretary gave a very weak answer.
They were on weak ground, with no precedents for their action.
They exploited the weak points in their opponents’ defences.
His faith in his family had become weak over the years.
The pound grew weaker against the dollar.
She makes the tea too weak.
a weak solution of hydrochloric acid
He had only a weak light to work by.
She gave me a weak smile and a little wave.