1. Used of animals; without protective covering
   - unarmored [US] 
2. (used of persons or things military) without protective armour
   - unarmored [US]

See also: scaleless

• unoriginally
• unoriginated
• unornamented
• unorthodox
• unorthodoxy
• unostentatious
• unowned
• unoxygenated
• unpack
• unpackaged
• unpaid
• unpaid worker
• unpainful
• unpaintable
• unpainted
• unpaired
• unpalatability
• unpalatable
• unpalatableness
• unpalatably
• unparallel
• unparalleled
• unpardonable
• unpardonably
• unparented