non·tra·di·tion·al 
/ˌnɑ:ntrəˈdɪʃənl̟/ adjective
/ˌnɑ:ntrəˈdɪʃənl̟/ adjective : different from what is typical or usual
▪ He has a very nontraditional approach to teaching. ▪ The college encourages nontraditional students [=students who are older than the typical age of college students] to apply. ▪ children growing up in nontraditional families [=families that are not made up of one mother, one father, and a child or children]
▪ He has a very nontraditional approach to teaching. ▪ The college encourages nontraditional students [=students who are older than the typical age of college students] to apply. ▪ children growing up in nontraditional families [=families that are not made up of one mother, one father, and a child or children]
