outdoor
Word family
- outdoorsadverbB1
- outdoorsyadjectiveC1
Synonym discussion
Sense: adjective/1
Outdoor is the broad everyday adjective for things that are used or happen outside, such as outdoor furniture or an outdoor concert. Open-air is close, but it more often suggests a place or event with no roof, and it appears in fixed phrases like open-air market. Outside is simpler, yet it sounds less natural before many nouns, so people usually say outdoor shoes rather than outside shoes. Alfresco is more formal and is used especially for eating or drinking outside. Say outdoor table for a table on a patio, open-air concert for a music event in the open, and alfresco lunch for a meal enjoyed outside.
Etymology
Outdoor was formed in English from out and door. It first described what was beyond the house or doorway, and later became the usual adjective for things, activities, and ways of life connected with being outside.