s under terms not final or fully worked out or agreed upon
s unsettled in mind or opinion
n. 试验
a. 试验性的, 暂时的
1. The meeting is scheduled for next week, but it is still tentative.
会议定于下周举行，但仍然是暂定的。
2. She made a tentative plan to visit her friend this weekend.
她暂时计划这个周末去拜访朋友。
3. His tentative answer showed that he was unsure about the topic.
他犹豫不决的回答表明他对这个话题不确定。