ex·tra·cur·ric·u·lar /ˌɛkstrəkəˈrɪkjəlɚ/
(a.)課外的,業餘的
extracurricular
adj 1: outside the regular academic curriculum; "sports and drama
are popular extracurricular activities"
2: outside the regular duties of your job or profession
3: characterized by adultery; "an adulterous relationship";
"extramarital affairs"; "the extracurricular activities of
a philandering husband" [syn: adulterous, extramarital]