- having no weapons, esp. firearms, or armor; defenseless
- lacking scales, claws, spines, thorns, etc.: said of plants or animals
- a. Lacking weapons or armor; defenseless.b. Not carrying, using, or displaying arms: an unarmed spotter plane; unarmed robbery.
- Biology Having no thorns, spines, teeth, claws, or other protective parts.
- defenceless and lacking weapons or armour
- not carrying arms
- (biology) not having thorns or claws etc.