Unarmed means carrying no weapon. An unarmed man, unarmed police, unarmed combat.
It is a factual word doing heavy work: whether somebody was unarmed is often the whole question after a shooting. Most British police are unarmed, which is unusual internationally. Unarmed combat is the military name for fighting without weapons.
1adjectiveunarmedCarrying no weapon.
“The guards were unarmed and could do nothing to stop the robbers.”
unarmed is a state.
From un- + armed.
Etymology from Wiktionary, CC BY-SA