Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
became doubtful about
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "became doubtful about" is correct and usable in written English.
You can use it when expressing uncertainty or skepticism regarding a particular subject or situation. Example: "After reviewing the evidence, she became doubtful about the accuracy of the report."
✓ Grammatically correct
Alternative expressions(5)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
60 human-written examples
Eddie becomes doubtful about a group he has previously followed unquestioningly, much to the concern of his still-devout wife Sarah Michelle Monaghann).
News & Media
Though IBM's profits have kept rising, investors have become doubtful about where its future growth will come from, so its shares have fallen by almost 13% since their peak last March (see chart), even as tech stocks and the broader stockmarket have soared.
News & Media
The topic identification algorithm's performance becomes doubtful in various cases.
Under such conditions, the value of "classical" measures of renal function becomes doubtful.
Science
Despite his resources and history litigating against BP, Buzbee became increasingly doubtful about his chances of making the steering committee.
News & Media
Dorothy became increasingly doubtful about the "medical model" of mental illness, analysing it in terms of physical causes, and instead looked towards the personal construct theory, developed by George Kelly.
News & Media
Some Shell shareholders have become increasingly doubtful about the BG deal, which was agreed on the assumption oil prices would recover to $90 a barrel by 2020.
News & Media
The more time I spend here in the United States, the more doubtful I become about this.
News & Media
A large number of scientific findings have been disproved, or become more doubtful, in recent years.
News & Media
Supposedly Fisons' attitude has become more cooperative, but conservations are doubtful about this.
News & Media
He continued to be doubtful about this, but by the early 1950s his doubts had sufficiently dissipated for publication to become a possibility.
Science
Expert writing Tips
Best practice
Use "became doubtful about" to express a gradual shift in one's certainty or belief regarding a specific subject. This construction is useful when describing a process of increasing skepticism.
Common error
Avoid using "became doubtful about" to describe an instantaneous change of opinion. This phrase suggests a gradual evolution of doubt rather than a sudden realization or revelation.
Source & Trust
60%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "became doubtful about" functions as a verb phrase, indicating a transition into a state of uncertainty or skepticism. It connects a subject with a gradual change in their level of confidence or belief regarding a particular topic, person, or situation. Ludwig AI confirms its proper usage.
Frequent in
Science
0%
News & Media
0%
Formal & Business
0%
Less common in
Science
0%
News & Media
0%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, the phrase "became doubtful about" effectively conveys a gradual shift towards uncertainty or skepticism. As confirmed by Ludwig AI, it is grammatically sound and versatile, fitting into various contexts from news to academic discussions. When writing, remember that using this phrase suggests a process of evolving doubt, rather than a sudden change of heart. While synonyms exist, such as "started to question" or "grew skeptical of", the choice depends on the specific shade of meaning you aim to convey.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
Started having doubts regarding
Emphasizes the initiation of uncertainty or second thoughts about something.
Started to question
Focuses on the initiation of doubt or inquiry rather than a developed sense of uncertainty.
Became unsure of
Focuses on a developing lack of certainty or confidence.
Grew skeptical of
Emphasizes an increasing disbelief or cynicism.
Had growing reservations about
Emphasizes the development of concerns and hesitations.
Lost faith in
Indicates a complete or significant reduction in trust or belief.
Grew less confident in
Highlights a diminishing level of assurance or belief.
Began to suspect
Highlights the emergence of a feeling that something is not as it seems.
Turned dubious toward
Suggests a shift from a state of acceptance or neutrality to one of uncertainty and hesitation.
Developed misgivings about
Focuses on the emergence of feelings of unease or apprehension.
FAQs
How can I use "became doubtful about" in a sentence?
You can use "became doubtful about" to describe a gradual increase in skepticism or uncertainty regarding something. For example: "After reviewing the evidence, she "became doubtful about" the accuracy of the report".
What are some alternatives to "became doubtful about"?
Alternatives include phrases like "started to question", "grew skeptical of", or "lost faith in". The most appropriate choice depends on the specific context and the nuance you wish to convey. Consider using "started to question", "grew skeptical of", or "lost faith in".
Is "became doubtful about" formal or informal?
"Became doubtful about" is suitable for both formal and informal contexts. However, in highly formal settings, you might opt for synonyms like "developed reservations regarding" or "grew increasingly dubious of" for a more sophisticated tone. Consider using "developed reservations regarding".
What's the difference between "became doubtful about" and "started doubting"?
"Became doubtful about" suggests a gradual process of developing doubt, whereas "started doubting" indicates the initial point at which doubts began. The former implies a more progressed state of uncertainty. Use "started doubting" if you want to express the inception of your doubts.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
60%
Authority and reliability
4.5/5
Expert rating
Real-world application tested