adjective. Reduced, made less strong.

verb. Simple past tense and past participle of weaken.

adjective. damaged inanimate objects or their value

adjective. mixed with water

adjective. made weak or weaker

adjective. impaired by diminution

adjective. reduced in strength

"Even with the Patriots secondary again weakened by the loss of injured free safety Eugene Wilson, McNabb could only make it close."

strengthened  

damaged  decreased  dilute  diluted  impaired  

abated  ablated  aggravated  atonic  attenuated  

weaken