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. 晚上的演出很糟糕, 所有人的表演都猶豫不決，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%的人對這個想法都沒有把握。