Unarmed rhymes with:
alarmed, armed, charmed, disarmed, farmed, harmed, unharmed, alarmed, armed, brainstormed, charmed, conformed, deformed, disarmed, farmed, formed, harmed, informed, malformed, misinformed, outperformed, performed, reformed, stormed, swarmed, transformed, underperformed, unformed, unharmed, uniformed, uninformed, warmed
Unarmed sounds like:
unearned, unharmed, unremitted, unwarranted