a spent force

a spent force

A person, group, or effort that is no longer as powerful, influential, or effective as it once was. There are those who think our great country is a spent force on the global stage, but this is of course utter nonsense. Despite the advances of the government, the rebel group is far from being a spent force in the region.
See also: force, spent
Farlex Dictionary of Idioms.

a ˌspent ˈforce

a person or group that no longer has any power or influence: The new album is proof that this band is not a spent force just yet.
See also: force, spent
Farlex Partner Idioms Dictionary
See also:
  • biggest frog in the puddle
  • the biggest frog in the puddle
  • the biggest toad in the puddle
  • sleeping giant
  • big-time operator
  • BTO
  • cut ice with (someone)
  • don't cut no ice
  • great gun
  • do (all) the running