Word · CEFR B2 · Frequency #4664
Fully loadeddoubtful
怀疑的；拿不准的
Feeling or showing doubt; uncertain in opinion.
- 1.
Subject to, or causing doubt.
不确定的,或引起怀疑的。
- 2.
open to doubt or suspicion; ; ; ; - Karen Horney
可疑的,值得怀疑的
- 3.
Experiencing or showing doubt, skeptical.
感到或表现出怀疑的,持怀疑态度的。
- 4.
fraught with uncertainty or doubt
充满不确定或怀疑的
- 5.
Undecided or of uncertain outcome.
未决定的或结果不确定的。
- 6.
unsettled in mind or opinion
犹豫不决的,主意未定的
- 7.
Improbable or unlikely.
不太可能的。
- 8.
Suspicious, or of dubious character.
可疑的,或品质不端的。
- 9.
Unclear or unreliable.
不清楚的或不可靠的。
可疑的；不确定的；不可靠的；不大可能的；未定的；难以预料的；不确定的,或引起怀疑的。；可疑的,值得怀疑的
In use
I'm doubtful about his ability to finish the project on time.
It is doubtful whether the meeting will be held today.
The authenticity of the document is doubtful.
the candidate's doubtful past
they were doubtful that the cord would hold
it was doubtful whether she would be admitted
be doubtful about/of sth
后接名词或动名词，表示对某事不确定或怀疑。
She was doubtful about his honesty.
她对他的诚实感到怀疑。
be doubtful that...
后接从句，表达对某事的怀疑。
Connections
Collocations
- doubtful about
- 对…怀疑的
- She was doubtful about the plan's success.她对这个计划的成功表示怀疑。
- it is doubtful that
- …是值得怀疑的
- It is doubtful that he will arrive on time.他能否准时到达值得怀疑。
- a doubtful look
- 怀疑的表情
- He gave her a doubtful look.他向她投去怀疑的目光。
- doubtful quality
- 可疑的质量
- The product is of doubtful quality.这个产品质量可疑。
- remain doubtful
- 仍然怀疑
- Despite the evidence, he remained doubtful.尽管有证据，他仍然怀疑。
- look doubtful
Learner notes
Memory Tip
想象心里装满怀疑（doubt）的状态，就是doubtful。
Context & Register
通常用于表达怀疑或不确定的状态，既可用于客观评价（如可疑事物），也可用于主观感受（如内心不确定）。语域偏中性，在日常对话和正式书面语中都常见。
Grammar Note
常用于 be doubtful about 或后接 whether/if 从句表示怀疑；也可后接 that 从句。
Pronunciation & Spelling
All listed words share the unstressed suffix '-ful' pronounced /fəl/, but do not rhyme with 'doubtful' because the stressed vowel in 'doubtful' is /aʊ/, which differs from the stressed vowels in these words (e.g., /ɛ/, /eɪ/, /uː/, etc.).
Usage priority
Collins 词频等级为 2，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.