LAME

(UNABLE TO WALK) [adjective] -r, -st - (esp. of animals) not able to walk correctly because of physical injury to or weakness in the legs or feetInfection in this part of the foot can make the horse (go) permanently lame.A lame duck is someone or something that is not effective at what they do.His recovery strategy does not mean old-style intervention which just throws money at lame ducks.A lame duck chief justice cannot make many changes in the judicial system.In American politics, a lame duck is a person who has had an elected position and who is not elected again.We hope our governor will be a lame duck after election day.