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TOEFL IELTS BNC: 4664 COCA: 9015

doubtful

1 ENTRIES FOUND:
doubtful /ˈdaʊtfəl/ adjective
doubtful
/ˈdaʊtfəl/
adjective
Learner's definition of DOUBTFUL
[more doubtful; most doubtful]
: uncertain or unsure about something不确定的;拿不准的
often + about or of
: not likely to be true : not probable不大可能的;未必真实的
often + that, if, or whether
: likely to be bad : not worthy of trust不值得信任的;靠不住的
: not certain : unknown or undecided不明的;未确定的

— doubtfully

adverb
TOEFL IELTS BNC: 4664 COCA: 9015

doubtful

adjective

doubt·​ful ˈdau̇t-fəl How to pronounce doubtful (audio)
1
a
: lacking a definite opinion, conviction, or determination
They were doubtful about the advantages of the new system.
b
: uncertain in outcome : undecided
The outcome of the election remains doubtful.
2
: marked by qualities that raise doubts about worth, honesty, or validity
of doubtful repute
3
: giving rise to doubt or uncertainty : open to question
It is doubtful that they ever knew what happened.
a doubtful premise
doubtfully adverb
doubtfulness noun
Choose the Right Synonym for doubtful

doubtful, dubious, problematic, questionable mean not affording assurance of the worth, soundness, or certainty of something.

doubtful implies little more than a lack of conviction or certainty.

doubtful about whether I said the right thing

dubious stresses suspicion, mistrust, or hesitation.

dubious about the practicality of the scheme

problematic applies especially to things whose existence, meaning, fulfillment, or realization is highly uncertain.

whether the project will ever be finished is problematic

questionable may imply no more than the existence of doubt but usually suggests that the suspicions are well-grounded.

a man of questionable honesty

Example Sentences

I tried to reassure them, but they remained doubtful. The truth of the statements was doubtful. Their decisions were based on data of doubtful accuracy.
Recent Examples on the Web Bears rookie wide receiver/returner Velus Jones Jr. was listed as doubtful to play with a hamstring injury, while rookie defensive end Dominique Robinson was questionable with a knee injury. Colleen Kane, Chicago Tribune, 11 Sep. 2022 After not practicing all week, J.C. Jackson was officially designated as doubtful for the Chargers’ season-opener Sunday against Las Vegas. Jeff Miller, Los Angeles Times, 9 Sep. 2022 Practice emotional intelligence by being self-aware in the situation—manage the feelings of being uncomfortable or doubtful of yourself and know the triggers. Expert Panel®, Forbes, 17 June 2022 But Frost and other legal experts said that making the procedures less opaque would help build trust among the court skeptics doubtful of Thomas' and other justices' refusal to recuse in certain cases. Tierney Sneed, Caroline Kenny And Pamela Brown, CNN, 4 Feb. 2022 McFadden, however, is doubtful of the building's effectiveness. NBC News, 3 Nov. 2021 Senate Democrats, doubtful of getting the 60 votes needed to thwart a possible filibuster, are considering adding some PRO Act provisions to a $3.5 trillion spending bill. Russ Wiles, The Arizona Republic, 1 Sep. 2021 In March, the White House also orchestrated an Instagram Live chat between Dr. Fauci and Eugenio Derbez, a Mexican actor with over 16.6 million Instagram followers who had been openly doubtful of the vaccines. New York Times, 2 Aug. 2021 However, the outlook for further development during the weekend remains doubtful because the disturbance will run into unfavorable conditions. Chris Perkins, Sun Sentinel, 10 Aug. 2022 See More

Word History

Etymology

see doubt entry 1

First Known Use

14th century, in the meaning defined at sense 3

Time Traveler
The first known use of doubtful was in the 14th century
TOEFL IELTS BNC: 4664 COCA: 9015
doubtful

adjective¹

1feeling doubt懷疑VERBS | ADVERB | PREPOSITION VERBSbe, feel, look, seem, sound懷疑;感到可疑;看上去可疑;好像可疑;聽起來可疑Eric was far from sure and Marion looked doubtful.埃里克根本沒有把握,馬里昂看上去也很疑惑。become開始疑惑remain一直懷疑ADVERBextremely, fairly, very, etc.極其/相當/非常懷疑a little, slightly, etc.有點兒/略有些懷疑PREPOSITIONabout懷疑⋯She was rather doubtful about the wisdom of eating the seafood.她很懷疑吃海鮮是否明智。
doubtful

adjective²

2unlikely不大可能VERBS | ADVERB VERBSbe, look, seem無把握;看上去無把握;好像無把握remain仍然無把握ADVERBextremely, fairly, very, etc.極其/相當/非常不確定highly非常不確定Even if we could go, which is highly doubtful, John wouldn't be able to come with us.即使我們能去 - 這還很沒準兒 - 約翰也不能和我們一起去。increasingly越來越不確定a little, slightly, etc.有點兒/稍微有些不確定

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