outdoor

from WordNet (r) 3.0 (2006)

outdoor
    adj 1: located, suited for, or taking place in the open air;
           "outdoor clothes"; "badminton and other outdoor games";
           "a beautiful outdoor setting for the wedding" [syn:
           {outdoor(a)}, {out-of-door}, {outside}] [ant:
           {indoor(a)}]
    2: pertaining to or concerning the outdoors or outdoor
       activities; "outdoor education is the area of teacher
       training concerned with training for outdoor activities"

from The Collaborative International Dictionary of English v.0.48

Outdoor \Out"door`\, a. [For out of door.]
   Being, or done, in the open air; being or done outside of
   certain buildings, as poorhouses, hospitals, etc.; as,
   outdoor exercise; outdoor relief; outdoor patients.
   [1913 Webster]