suburbia UK /səˈbɜːbi.ə/US /səˈbɝbi.ə/ noun1 •The suburbs as a whole and all that characterizes or pertains to them; (sometimes derogatory) the suburbs as encapsulated or represented by the typical characteristics or qualities of the people living there, especially complacency, conformity, conservativeness, dullness, etc.Others with young families prefer their children to live by the sea, rather than in suburbia, even if as a result one or both parents have to travel many miles to their work. — 1959 formssuburbias