invitational

柯林斯词典

1. ADJ An invitational tournament or event is a sports competition in which only players who have been asked to take part can compete. 邀请的[ADJ n]
After all, The Masters is an invitational tournament. 毕竟，这项大师赛是一场邀请赛。
2. N-COUNT Invitational is also a noun. 邀请赛
...a 59-team invitational for field and running events. ...一场59支队伍参加的田径邀请赛。