doubtful

'dautful

四级六级托福雅思 Collins 2

s. open to doubt or suspicion
s. fraught with uncertainty or doubt
s. unsettled in mind or opinion

a. 可疑的, 疑心的, 不明确的
[法] 怀疑的, 有疑问的, 未确的

Collins 星级

4,664

BNC 频率

9,015

使用频率

doubtful 由词根 doubt（怀疑）和后缀 -ful（充满...的）组成，表示充满怀疑的状态。

例句

1. She was doubtful about his ability to finish the project on time.

她对他按时完成项目的能力表示怀疑。

2. The weather forecast is doubtful, so we should prepare for rain.

天气预报不确定，所以我们应该准备好防雨。

3. Many people are doubtful that the new policy will improve the economy.

很多人怀疑新政策是否会改善经济。