dil ‧ et ‧ tan ‧ te /ˌdɪləˈtænti, ˌdɪlɪˈtænti $ -ˈtɑːnti/ BrE AmE noun [countable]
[ Date: 1700-1800 ; Language: Italian ; Origin: present participle of dilettare 'to give pleasure to' , from Latin delectare ; ⇨ ↑ delight 2 ]
someone who is not serious about what they are doing or does not study a subject thoroughly
—dilettante adjective [only before noun]