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. 邀請的[ADJ n]
After all, The Masters is an invitational tournament. 畢竟，這項大師賽是一場邀請賽。
2. N-COUNT Invitational is also a noun. 邀請賽
...a 59-team invitational for field and running events. ...一場59支隊伍蓡加的田逕邀請賽。