adj. 1.怀疑的，拿不准的，不太相信的 (of; about)。 2.可疑的，有疑问的；未必好的。 3.含糊的，暧昧的。 4.难以预料的，未定局的。 短语和例子 He is doubtful of [about] the news. 他怀疑那个消息不尽可靠。 I'm doubtful (as to) what I ought to say. 我拿不准该说些什么。 a doubtful proposition 可疑的命题。 a doubtful character 可疑的人物。 magazine of doubtful taste 内容不太好的[低级趣味的]杂志。 a doubtful reply 含糊的回答。 a doubtful future 难以预料的未来。 adv. -ly ,-ness n.
fraught with uncertainty or doubt; "they were doubtful that the cord would hold"; "it was doubtful whether she would be admitted"; "dubious about agreeing to go" 同义词：dubious,
open to doubt or suspicion; "the candidate''s doubtful past"; "he has a dubious record indeed"; "what one found uncertain the other found dubious or downright false"; "it was more than dubitable whether the friend was as influential as she thought"- Karen Horney 同义词：dubious, dubitable, in question,
unsettled in mind or opinion; "drew a few tentative conclusions" 同义词：tentative,
例句与用法
1.
In his eye there was a doubtful light . 他的眼睛闪烁着一种怀疑的光芒。
2.
He had a spasm of doubtful pride . 他体验了一阵不塌实的自豪感。
3.
But at best it was a doubtful business . 可事情总不免有点儿玄。
4.
I 'm doubtful as to what i ought to say . 我拿不准该说些什么。
5.
The propriety of her deeds was doubtful . 她的行为是否得体却是很可怀疑的。
6.
His father, too, seemed doubtful in his view . 他父亲的看法好象也模棱两可。
7.
It is doubtful whether there will be any seats left . 说不上还有没有空座位了。
8.
I 'm doubtful what i ought to say . 我拿不准该说些什么。
9.
He is doubtful about the news . 他怀疑那个消息不尽可靠。
10.
The insecticidal action must be considered doubtful . 这个杀虫作用是值得怀疑的。
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