Definition of: undress

(un·dres′) v.t.
1. To divest of clothes; strip.
2. To remove the dressing or bandages from, as a wound.
3. To divest of special attire; disrobe.
—v.i.
4. To remove one's clothing.
—noun
1. Ordinary attire; negligée, as opposed to full or evening dress; specifically, the military or naval uniform worn by officers when not on parade or at functions necessitating full dress.
2. Comfortable, informal clothing.
3. Nudity: in a state of undress.
—adjective (un′dres′) Pertaining to everyday attire; hence, informal.