ex ‧ traor ‧ di ‧ naire /ɪkˌstrɔːdəˈneə, ɪkˌstrɔːdɪˈneə $ -ˌstrɔːrdnˈer/ BrE AmE adjective [only after noun]
[ Date: 1900-2000 ; Language: French ; Origin: 'extraordinary' ]
used, often humorously, to describe someone who is very good at doing something
gardener/cakemaker/chef etc extraordinaire