verb. Present participle of weaken.

noun. An instance or process of loss of strength

noun. (mathematics) A structural principle of mathematical logic that states that the hypotheses of any derived fact may be freely extended with additional assumptions

adjective. moderating by making pain or sorrow weaker

noun. the act of reducing the strength of something

noun. becoming weaker

adjective. causing debilitation

"Qashqavi accused everyone working at the BBC, the Voice of America, and CNN are pursuing what he called the weakening of Iran's unity and seeking the disintegration of the country all because he said of ties to Israel and Zionism."

strengthening  

debilitating  moderating  

abatement  abridgment  alleviation  asthenic  attenuation  

weaken