What is the comparative form of “surefire”?

The comparative form of “surefire” is “surer”.

Example

I am surer of my decision now than I was before.

Example

He became surer of his abilities after receiving positive feedback.

What is the superlative form of “surefire”?

The superlative form of “surefire” is “surest”.

Example

Out of all the options, this is the surest way to succeed.

Example

He is known for being the surest decision-maker in the company.

Why is this expression not used with most, more?

'Most' and 'more' are generally not used with sure, surer, and surest. They’re considered regular comparatives and superlatives. The forms 'more sure' and 'most sure' are not commonly used because they sound awkward. Instead, surer and surest are the correct and preferred forms to use.

Does this expression have an irregular comparative/superlative form?

Sure does not have an irregular comparative or superlative form. It follows the standard pattern for forming comparatives and superlatives. So, to summarize: Comparative: Sure → Surer Superlative: Sure → Surest

Expressions with similar meanings to “surer”

more certain

Used to describe a higher level of certainty

Example

She felt more certain about her answer after double-checking the information.

more confident

Used to indicate a higher level of confidence in oneself or one's abilities

Example

After practicing for hours, he felt more confident in his presentation skills.

more convinced

Used to express a higher level of conviction or belief

Example

The evidence presented in court made her more convinced of the defendant's guilt.

Expressions with similar meanings to “surest”

most certain

Similar to surest, this emphasizes the highest level of certainty

Example

Among all the theories, this one is the most certain to be true.

most confident

Used to describe the highest level of confidence in oneself or one's abilities

Example

She is the most confident speaker I have ever seen.

most convinced

Used to express the highest level of conviction or belief

Example

After hearing all the arguments, he became most convinced of the need for change.

Using than with comparative “surer”

When using the comparative form surer to compare two things, you would use than to connect the two parts of the comparison: Example: "I am surer of my decision now than I was before." Here, than is used to show that the level of certainty is greater now compared to before.

How can I use this expression in context?

“surer” and “surest” can be used in a variety of situations to compare speed.

1Decision-making
This option seems surer than the others.
This option seems surer than the others.
2Beliefs
He is the surest believer in the power of positive thinking.
He is the surest believer in the power of positive thinking.
3Knowledge
After studying for hours, she became surer of the subject matter.
After studying for hours, she became surer of the subject matter.
4Skills
With practice, he became the surest performer in the group.
With practice, he became the surest performer in the group.
5Predictions
The weather forecast says it will rain, but I'm surest it will be sunny.
The weather forecast says it will rain, but I'm surest it will be sunny.

Related idioms and phrases

Sure as shooting

Absolutely certain or guaranteed.

Example

I'm sure as shooting that he will win the competition.

Sure-fire

Certain to be successful or effective.

Example

The new marketing strategy is a sure-fire way to increase sales.

Sure thing

Something that is guaranteed or certain to happen.

Example

You can count on me to help you out, it's a sure thing.