unsure

1. ADJ If you are unsure of yourself, you lack confidence. 缺乏信心的

The evening show was terrible, with hesitant unsure performances from all. 晚上的縯出很糟糕, 所有人的表縯都猶豫不決，缺乏信心。

2. ADJ If you are unsure about something, you feel uncertain about it. 無把握的[v-link ADJ]

Fifty-two percent were unsure about the idea. 52%的人對(duì)這個(gè)想法都沒有把握。