1580s, from Medieval Latin tentativus "trying, testing," from Latin tentatus, past participle of tentare "to feel, try." Related: Tentatively; tentativeness.
例文
1. My first attempts at complaining were rather tentative .
私は最初にクレームを出したときはためらっていました。
2.She did not return his tentative smile.
彼女は彼のおどおどした微笑には答えなかった。
3.We made a tentative arrangement to meet on Friday.
私たちは暫定的に金曜日に会います。
4.Please come out with your tentative ideas at the meeting.