Doubt

(of a statement or story) unlikely to be authentic, even though it is widely believed to be true

He shared an apocryphal story about the founding of the city that many people still believe.

a feeling of uncertainty and doubt about something

A question mark hangs over the future of the company and I'm sure you don't need me to remind you of that.

open to question and disagreement

The decision to raise taxes is arguable, with people holding different opinions on the matter.

used to express one's uncertainty about the statement one has made as there might be something that makes it untrue

As far as we know, the company is expanding its operations.

to certainly happen at some point in the future

With the team's talent and dedication, it's a matter of time before they win the championship.

a state of being confused and not having a clear understanding of an action, behavior, etc.

The student's confusion was evident when he couldn't solve the math problem.

(of a subject of discussion) unclear or uncertain, therefore can be further discussed or disagreed with

The impact of the new policy is debatable among experts.

a feeling of disbelief or uncertainty about something

Doubt crept into her mind as she pondered the possibility of failure.

(of a person) uncertain or hesitant about something

He appeared doubtful about the reliability of the information he received.

causing doubt or suspicion

His dubious explanation for being late didn’t seem believable.

to make someone or something stop

An unexpected obstacle on the railroad tracks forced the train conductor to halt the locomotive.

(of speech or movement) in a nervous manner that makes one stutter while speaking or stumble while walking

to say that one will do something even though they might not really intending to

I have half a mind to quit my job and pursue my true passion.

to pause before saying or doing something because of uncertainty or nervousness

When asked about the promotion, Sarah hesitated before responding.

a feeling of doubt, uncertainty, or reluctance before acting

She showed hesitation before agreeing to the risky plan.

used to say that something happening, existing, etc. depends on another thing happening, existing, etc.

I will go to the party if I finish my homework on time.

having a feeling of uncertainty or doubt toward something

The weather forecast for the picnic looks iffy, so we might need a backup plan.

not able to occur, exist, or be done

Despite all his efforts, he found it impossible to forget his past.

used to show uncertainty or hesitation

She may go to the beach if the weather improves, maybe even bring a picnic.

used usually in a response to show that something may not be true

Just because someone is wealthy doesn't necessarily mean they're happy.

used to emphasize a statement or opinion in a forceful or confrontational way

That's the best movie of the year, or what!

used to express that something might happen or be true

The store will possibly restock the item next week.