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Prepositions after adjectives

Thoughtful about vs thoughtful of

Thoughtful about usually means thinking carefully about something. Thoughtful of usually means considerate toward someone or mindful of something.

Quick answer

Which preposition goes with thoughtful?

Use thoughtful about for careful consideration of a topic or decision. Use thoughtful of for consideration toward people or awareness of circumstances.

She was thoughtful about the budget changes.
It was thoughtful of you to call.
He is always thoughtful of other passengers.

Choose the pattern by meaning

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

1
thoughtful about + topic

Carefully considering something

Use thoughtful about when someone thinks seriously or carefully about a subject.

The committee was thoughtful about the risks involved.
2
thoughtful of + person

Showing consideration toward someone

Use thoughtful of to describe kindness or consideration toward people.

She was very thoughtful of her elderly neighbour.
3
thoughtful of + situation

Being mindful of circumstances

Thoughtful of can also mean aware of other people's needs or conditions.

They were thoughtful of our limited time.

See the difference in context

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

Construction
Example
Meaning
thoughtful about
He is thoughtful about major decisions.
carefully considering a subject
thoughtful of
That was thoughtful of you.
kind or considerate toward someone
thoughtful of
She was thoughtful of the children's needs.
mindful or considerate of circumstances

Common mistakes

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

Using thoughtful about for kindness

Thoughtful about usually refers to careful thinking, not kindness.

✕ It was thoughtful about you to help. ✓ It was thoughtful of you to help.

Using thoughtful of for analysis

For careful consideration of a topic, about is more natural.

✕ She is thoughtful of the proposal. ✓ She is thoughtful about the proposal.

Quick practice

Choose the expression that matches the intended meaning.

1. They were very ___ our concerns during the meeting.
2. He became more ___ the long-term effects.
3. It was kind and ___ you to wait for us.

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Frequently asked questions

Can thoughtful about describe a person?

Yes. It describes someone who thinks carefully about issues or decisions.

Is thoughtful of always about kindness?

Usually yes, although it can also mean being mindful of circumstances or needs.

Can I say thoughtful towards?

Thoughtful towards someone is possible in some contexts, but thoughtful of is more common for considerate behaviour.

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