Prepositions after adjectives

Fearful of, about, for, in or as?

Fearful of is the standard pattern for fearing something. Fearful about and fearful for are also common in specific meanings. Fearful in and fearful as are not standard combinations after fearful.

Quick answer

Which prepositions are correct after fearful?

Use fearful of for the thing that causes fear. Use fearful about for worry concerning a situation, especially in informal English. Use fearful for when you fear for another person's safety or future. Fearful in and fearful as are generally not idiomatic patterns after fearful.

She is fearful of heights.
Parents are fearful for their children.
He felt fearful about the interview.

Choose the pattern by meaning

These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.

1
fearful of + thing

Naming the source of fear

Fearful of is the most common and standard pattern.

Many people are fearful of failure.
The child became fearful of dogs.
2
fearful about + situation

Expressing worry about something

Fearful about often emphasizes anxiety concerning a future event or situation.

Investors are fearful about inflation.
She was fearful about the results.
3
fearful for + person/future

Feeling fear on behalf of someone

Fearful for is used when you worry about another person's safety, wellbeing, or future.

We are fearful for his health.
They grew fearful for the team's future.

See the difference in context

The same subject can take different constructions because each sentence answers a different question.

Construction
Example
Meaning
fearful of
He is fearful of flying.
afraid of a thing or activity
fearful about
She is fearful about the economy.
worried about a situation or possibility
fearful for
I am fearful for their safety.
concerned about someone else's wellbeing
fearful in
She was fearful in the dark room.
In this sentence, in introduces a place, not a standard adjective pattern after fearful.
fearful as
The phrase fearful as is not a standard prepositional pattern after fearful.
Use fearful of, about, or for instead.

Common mistakes

Some combinations appear in real text but do not mean what learners often assume.

Using fearful as as a fixed pattern

Fearful is not normally followed by as.

✕ He is fearful as public speaking. ✓ He is fearful of public speaking.

Confusing fearful for with fearful of

Fearful for expresses concern about someone else, not personal fear of something.

✕ She is fearful for spiders. ✓ She is fearful of spiders.

Treating fearful in as a set combination

In can introduce a place or situation, but it is not the selected preposition after fearful.

✕ They are fearful in change. ✓ They are fearful of change.

Quick practice

Choose the expression that matches the intended meaning.

1. She has always been ___ large crowds.
2. Parents were ___ their children's safety.
3. He felt ___ the upcoming exam.

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Frequently asked questions

Is fearful about correct?

Yes. It is commonly used for anxiety or concern about a situation or future event.

Can fearful in ever appear in a sentence?

Yes, but in usually introduces a place or context rather than forming a fixed combination with fearful.

What is the difference between fearful of and fearful for?

Fearful of means afraid of something yourself. Fearful for means worried about another person's wellbeing or future.

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