un·con·ven·tion·al 
/ˌʌnkənˈvɛnʃənl̟/ adjective
/ˌʌnkənˈvɛnʃənl̟/ adjective [more unconventional; most unconventional] : very different from the things that are used or accepted by most people : not traditional or usual : not conventional
▪ an unconventional wardrobe ▪ Her lifestyle is rather unconventional. ▪ In his lectures, he encourages unconventional thinking. [=he encourages people to think in new and different ways]
▪ an unconventional wardrobe ▪ Her lifestyle is rather unconventional. ▪ In his lectures, he encourages unconventional thinking. [=he encourages people to think in new and different ways]
— un·con·ven·tion·al·i·ty /ˌʌnkənˌvɛnʃəˈnæləti/ noun [noncount]
/ˌʌnkənˌvɛnʃəˈnæləti/ noun [noncount]— un·con·ven·tion·al·ly adverb
▪ The class was encouraged to think unconventionally.
▪ The class was encouraged to think unconventionally.
