spent 
/ˈspɛnt/ adjective
/ˈspɛnt/ adjective 1 : used up and no longer useful
▪ spent nuclear fuel ▪ (chiefly Brit) He was once one of the most powerful men in the government, but now he's largely a spent force. [=he no longer has the power or influence he once had] 2 somewhat formal : tired and drained of energy
▪ By the end of the race I was completely spent. [=exhausted]
▪ spent nuclear fuel ▪ (chiefly Brit) He was once one of the most powerful men in the government, but now he's largely a spent force. [=he no longer has the power or influence he once had]
▪ By the end of the race I was completely spent. [=exhausted]
