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Prepositions after adjectives

Additional: which preposition is correct?

Additional is often used before a noun without a following preposition. Additional to appears in formal English, while other prepositions usually belong to the wider sentence.

Quick answer

Additional is often used directly before a noun

The most common pattern is additional + noun: additional information, additional costs. Additional to is formal and means in addition to. Phrases with for, in, or on usually express purpose, place, or topic.

additional funding is available.
Additional charges apply to international orders.
The service is available at no additional cost.

Choose the pattern by meaning

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

1
additional + noun

Adding more of something

Additional commonly comes directly before a noun.

additional staff were hired.
We need additional evidence before deciding.
2
additional to + noun

Meaning in addition to

Additional to is formal and means added to or besides something.

There are extra fees additional to the base price.
The course includes workshops additional to lectures.
3
additional for + purpose

Expressing purpose or need

For introduces the reason something extra is required.

Additional support is needed for new employees.
Funds were approved for additional training.
4
additional information on + topic

Giving a subject or topic

On introduces the topic of information or discussion.

You can find additional information on the website.
She requested additional details on the proposal.

See the difference in context

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

Construction
Example
Meaning
additional to
The insurance is additional to the membership fee.
Formal expression meaning in addition to.
additional of
The phrase additional of is not standard English.
Use additional to or simply additional + noun.
additional for
Additional funding was approved for repairs.
For introduces purpose or recipient.
additional in
Additional staff worked in the evening shift.
In is usually a separate place or time phrase.
additional on
We received additional information on the project.
On introduces a topic.

Common mistakes

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

Using additional of

Additional is not normally followed by of.

✕ We need additional of resources. ✓ We need additional resources.

Overusing additional to

In many cases, simple additional + noun sounds more natural.

✕ We require additional to documents. ✓ We require additional documents.

Confusing on with to

On introduces a topic, while to means in addition to.

✕ Additional information to the policy is online. ✓ Additional information on the policy is online.

Quick practice

Choose the expression that matches the intended meaning.

1. We need ___ evidence before approval.
2. The workshop fee is additional ___ the course price.
3. You can read additional details ___ the new system.

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Frequently asked questions

Can additional be used without a preposition?

Yes. Additional usually comes directly before a noun, such as additional time or additional support.

Is additional to formal?

Yes. It appears mainly in formal or legal writing.

Is additional of correct?

No. Standard English does not use additional of.

abhorrent-to-in-for-of, about "ablaze with" or "ablaze in"? "able for" or "able in"? "abreast of" or "abreast with"? "absent from" or "absent in"? absolute in, for, of, to or as? "absurd to", "absurd in" or "absurd for"? abundant in, with, of, on or for? "abusive to", "abusive in" or "abusive towards"? "academic in" or "academic at"? "acceptable to" or "acceptable for"? accessible to, by, for, from or in?

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