Preposition after adjective

Unaccustomed to or in?

Unaccustomed is normally followed by to before a noun, pronoun, or verb in -ing form. In usually introduces a separate place or situation phrase, not the adjective pattern itself.

Quick answer

Which preposition follows unaccustomed?

The standard pattern is unaccustomed to something or unaccustomed to doing something. Unaccustomed in is not normally used as the direct complement of the adjective, but in can appear later as a separate phrase of place or situation.

unaccustomed to cold weather
unaccustomed to working at night
She felt unaccustomed in large crowds after years abroad.

Choose the pattern by meaning

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

1
unaccustomed to + noun

Describing something unfamiliar

Use to before a noun or pronoun to describe a lack of experience or familiarity.

unaccustomed to noise
unaccustomed to city life
2
unaccustomed to + -ing

Talking about unfamiliar activities

Use to followed by a verb in -ing form for activities or routines.

unaccustomed to speaking in public
unaccustomed to driving long distances
3
unaccustomed + in + place or situation

Using in as a separate location phrase

In may describe where someone feels unaccustomed, but it is not the complement selected by unaccustomed.

He felt unaccustomed in formal meetings
They seemed unaccustomed in such luxurious surroundings

See the difference in context

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

Construction
Example
Meaning
unaccustomed to
She is unaccustomed to strict deadlines.
Standard pattern meaning not used to something.
unaccustomed in
He felt unaccustomed in the new environment.
In introduces the situation or place; it is not the normal complement after unaccustomed.
accustomed to
We are accustomed to early starts.
Means familiar with or used to something.

Common mistakes

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

Using a base verb after to

After unaccustomed to, use a noun or an -ing form, not a base verb.

✕ She is unaccustomed to drive at night. ✓ She is unaccustomed to driving at night.

Treating in as the standard complement

Use to for the direct complement of the adjective.

✕ They are unaccustomed in cold weather. ✓ They are unaccustomed to cold weather.

Quick practice

Choose the expression that matches the intended meaning.

1. She was unaccustomed ___ working under pressure.
2. They felt unaccustomed ___ the small village after years in the city.
3. We are unaccustomed ___ such formal ceremonies.

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Frequently asked questions

Can unaccustomed be followed by a verb?

Yes. Use to plus a verb in -ing form, such as unaccustomed to travelling alone.

Is unaccustomed in correct?

Not as the usual adjective pattern. In can introduce a separate place or situation phrase.

What is the opposite of unaccustomed?

Common opposites include accustomed to and used to.

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