Choose the perfect synonym or antonym for the word

Outdoor

/ˌaʊtˈdɔː/

Activities or things that exist or happen in open air or not inside a building.

Synonyms:

I enjoy outdoor activities like hiking.Outdoor furniture needs to be weather-resistant.

Originating from the combination of out (meaning outside or away from) and door (a movable barrier) dating back to the early 18th century.

15 mentions per 1 million words

Moderate

Hint: Frequency according to COCA