becoming weaker
"The constant rain has left the old bridge walls weakening, making them unsafe for traffic."
the act of reducing the strength of something
"The constant rain was causing a worrying weakening in the foundation of the old bridge."
An instance or process of loss of strength.
"After weeks of illness, his voice showed a clear sign of weakening as he struggled to finish the simple greeting."
present participle of weaken
"The constant rain was weakening the old wooden bridge, so the construction crew had to close it immediately for safety."
causing debilitation
"The prolonged fever left him in a state of weakening, making it impossible for him to stand without support."
moderating by making pain or sorrow weaker
"The gentle breeze had a weakening effect on her grief as she watched the sunset."