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Prepositions after adjectives

Smart about, in, for, with or of?

Different prepositions after smart create different meanings, and some combinations are more common than others.

Quick answer

How do these combinations differ?

Smart about means knowledgeable about something. Smart in refers to appearance or skill in a field. Smart for compares with expectations. Smart of means clever or sensible. Smart with can describe skill in handling something.

She is smart about investing.
He looks smart in a dark suit.
That was smart of you.
The child is smart for his age.

Choose the pattern by meaning

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

1
smart about + topic

Talking about knowledge or awareness

Use smart about for informed or careful behaviour.

You should be smart about online security.
She is smart about money.
2
smart in + clothing or field

Talking about appearance or skill

Smart in can describe appearance in clothes or ability in a subject.

He looked smart in his uniform.
She is smart in business matters.
3
smart for + category

Comparing intelligence or appearance

Use smart for when someone exceeds expectations.

The boy is smart for his age.
4
smart with + object

Talking about skill with tools or systems

Use smart with for ability in handling something.

She is smart with computers.
He is smart with numbers.
5
smart of + person

Commenting on a wise decision

Smart of means clever or sensible in a specific action.

It was smart of her to save the files.

See the difference in context

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

Construction
Example
Meaning
smart about
He is smart about his investments.
Careful, informed, or knowledgeable.
smart in
She looks smart in blue.
Well dressed or capable in a field.
smart for
The child is smart for his age.
More intelligent than expected.
smart with
He is smart with technology.
Good at handling something.
smart of
That was smart of you.
A wise or sensible action.

Common mistakes

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

Using smart of for general intelligence

Smart of comments on an action, not a permanent quality.

✕ She is smart of mathematics. ✓ She is smart in mathematics.

Confusing smart about and smart with

About refers to knowledge, while with refers to handling tools or things.

✕ He is smart with investing. ✓ He is smart about investing.

Using smart for without a comparison

Smart for usually compares someone with a category.

✕ She is smart for. ✓ She is smart for her age.

Quick practice

Choose the expression that matches the intended meaning.

1. She is smart ___ managing her finances.
2. He looks smart ___ his new jacket.
3. That was smart ___ you.

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Frequently asked questions

What does smart about mean?

It means informed, sensible, or careful regarding a topic.

Can smart in describe clothing?

Yes. You can say someone looks smart in a suit or dress.

Is smart with the same as good with?

Often yes. Smart with means skilled at handling something such as computers or money.

sacred-to-in-by-of, for "sad for" or "sad about"? "safe for", "safe from" or "safe in"? sanguine about, in, of, on or for? "satisfactory to" or "satisfactory for"? satisfied with, of, by, in or on? "satisfying for" or "satisfying to"? scarce in, for, at, on or of? scared of, to, about, for or by? "scary for" or "scary to"? "scathing about", "scathing in" or "scathing of"? "sceptical about" or "sceptical of"?

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