loser
Concise Oxford English Dictionary © 2008 Oxford University Press:
loser/ˈluːzə(r)/
▶noun a person or thing that loses or has lost.
■ informal a person who fails frequently.
– phrases
be on (or on to) a loser informal be involved in something that is bound to fail.
be on (or on to) a loser informal be involved in something that is bound to fail.
'loser' also found in these Oxford entries:

