супоста́т

rare #32227nounanimatecountable

1.
adversary, foe, enemy
Русские во́ины разби́ли супоста́та.
The Russian warriors defeated the foe.
Archaic and high-flown; today mostly in historical or ironic contexts.

Examples

Наши деды били супостата на этой земле.
Our grandfathers defeated the enemy on this very land.
Супостаты подошли к городским воротам.
The enemy approached the city gates.
Ах ты, супостат, опять всё сломал!
You bastard, you've broken everything again!