loser

loser
n person who loses or is defeated, esp habitually 受损失者, 输者, 失败者（尤指一贯如此者）
    a good/bad loser, ie one who accepts defeat well/badly 输得起[输不起]的人
    a born loser, ie sb who regularly fails in life 天生的庸才.

牛津英汉双解词典