| Outdoor (a.) 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. Thesaurus Entries abroad, aerial, aeriform, aery, airish, airlike, airy, atmospheric, breezy, en plein air, ethereal, exposed, in the open, light, open-air, out of doors, out-of-door, out-of-doors, outdoor, outdoors, outside, pneumatic, roomy, tropospheric |