Ways to Express Uncertainty
Hello, English learners. Welcome to a new lesson. Today, we will look at different ways to express uncertainty. You can look at ways to express certainty here.
Here is the list:
- Not certain/uncertain
- Not sure/unsure
- Unconvinced
- Have doubts
- Doubtful
- Dubious
- Sceptical
- Tentative
- Bewildered
- Be in two minds
- Inclined to think
- It remains to be seen
Not certain/uncertain
Meaning: feeling unsure about what to do.
- Scientists are not certain whether we are alone in the universe.
- Celia didn’t want to rush into marriage because she was uncertain about her feelings for Greg.
- Mark stopped the car, not certain whether to turn left or right.
Not sure/unsure
Meaning: feeling uncertain about what to do.
- Will you give me a hand? I’m not sure how to mount this Ikea shelf.
- Stephen was a bit unsure how to answer the question.
- I’m not sure whether to go to the party or study for my exam. Ways to express uncertainty
Unconvinced
Meaning: not sure about something despite what you’ve been told.
- The jury seemed unconvinced that the suspect was innocent.
- The engineer was unconvinced that the project would be cost-effective,
- Although she seemed skilled and experienced, the manager was still unconvinced she was the right person for the job.
Have doubts
Meaning: to not be sure about something.
- If you have any doubts about the offer, don’t accept it.
- The citizens have doubts about the new law’s effectiveness.
- I have doubts about his ability to fix the car engine. Why don’t we call a real mechanic?
Ways to Express Uncertainty
Doubtful
Meaning: to be uncertain about something; have doubts.
- It now seems doubtful whether they will pay us the money back or not.
- The committee was doubtful about the suggestion to organize a music festival in the village from the very beginning.
- I’m doubtful about that job offer. I’m not going to accept it.
Dubious
Meaning: suspecting that something might be wrong, uncertain of something.
- I think that these facts are dubious and not scientifically proven.
- I feel rather dubious about John’s ability to run his father’s business.
- The results of his actions remain dubious to this day.
Sceptical
Meaning: to be doubtful about something.
- The doctor seems sceptical about the injured man’s chances of living through the night.
- My wife thinks it’s a good idea to buy that heavily discounted air-conditioning, but I’m a bit sceptical.
- I admit I’m feeling sceptical about the tennis player’s chances of winning the match.
Ways to express uncertainty
Tentative
Meaning: not certain.
- My family and I have a tentative plan to go skiing in January.
- The board reached a tentative agreement. They’ll discuss it further in the months to come.
- The results seem rather tentative but mostly positive.
Bewildered
Meaning: confused and uncertain.
- When he realised no one was waiting for him at the airport, Dean felt quite bewildered.
- Too many questions made him feel bewildered.
- The customs officer demanded to look at the suitcase of a bewildered passenger.
Be in two minds
Meaning: indecisive.
- I’m in two minds whether to go on holiday to the mountains or the seaside.
- When he woke up this morning feeling sick, Jeremy was in two minds whether to go to work or not.
- Jeniffer was in two minds about leaving her hometown. She was afraid she would miss her friends and family.
Ways to express uncertainty
Be inclined to think/believe
Meaning: to have an opinion about something, but not a strong one.
- I’m inclined to think it is not a very good idea to go on a trip in this weather.
- The building’s residents were not inclined to think the new post boxes were very secure.
- I’m inclined to believe you, but I’ll still ask for a second opinion.
It remains to be seen
Meaning: it is not yet certain.
- It remains to be seen whether the new environmental law is effective.
- Whether we’ll win the match remains to be seen.
- It remains to be seen whether the new flu vaccines will protect us.

Ways to express uncertainty
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2 Comments
Ways to Say that You are Certain about Something - My Lingua Academy · 25 Dec 2022 at 2:12 pm
[…] Hi English learners! Welcome to a new lesson. We will look at different ways to say that you are certain about something. Learn the ways to say that you are not certain about something here. […]
Stronger Ways to Express Certainty - My Lingua Academy · 26 Nov 2025 at 10:28 am
[…] (If you want the opposite — ways to express uncertainty — you can read that lesson here.) […]