definite
/ˈdefɪnət; `dɛfənət/ adj
(a) clear; not doubtful 清楚的; 明确的; 确切的
a definite decision, opinion, result, change 明确的决定、 意见、 结果、 变化
I have no definite plans for tomorrow. 我明天没有确切的计划.
I want a definite answer, `yes' or `no'. 我要一个明确的答覆, ｀是＇还是｀不是＇.
(b) [pred 作表语]
~ (about sth/that...) sure; certain 肯定; 有把握
He seemed definite about what had happened. 他好像对所发生的事情很清楚.
It's now definite that the plane crashed. 现已肯定那架飞机已坠毁.