Prepositions after adjectives

Infinite with prepositions

Infinite is commonly followed by in, of, or to depending on meaning. Some combinations are rare or used in different sentence structures.

Quick answer

Which prepositions are used with infinite?

The most common patterns are infinite in something, infinite to someone, and an infinity of something. Infinite for is uncommon but possible in specific contexts such as time limits. Infinite by is not a standard complement after the adjective.

The universe seems infinite in size.
Her patience was infinite to the children.
We discussed an amount infinite for practical purposes.

Choose the pattern by meaning

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

1
infinite in + quality

Describing the area or quality that has no limits

Use infinite in to specify the aspect that is unlimited.

The design is infinite in variety.
Human curiosity is infinite in scope.
2
infinite to + person

Showing how something seems to someone

Use infinite to when describing perception or effect on a person.

The wait felt infinite to the passengers.
The distance appeared infinite to us.
3
infinite for + purpose

Expressing a practical or relative limit

Infinite for is uncommon but can mean effectively unlimited in a certain context.

The storage is infinite for everyday users.
The sequence seemed infinite for all practical purposes.

See the difference in context

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

Construction
Example
Meaning
infinite in
The ocean seemed infinite in depth.
Standard pattern for describing the area or quality without limits.
infinite of
An infinity of stars filled the sky.
Of normally follows the noun infinity, not the adjective infinite.
infinite by
The phrase 'infinite by' is not a standard complement pattern.
By is generally not used directly after infinite as its complement.
infinite to
The task looked infinite to the new team.
Shows how something appears to someone.
infinite for
The battery life is infinite for short trips.
Possible in limited contextual uses meaning effectively unlimited.

Common mistakes

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

Using of directly after infinite

The adjective infinite is usually not followed by of. Use the noun infinity instead.

✕ The options are infinite of number. ✓ The options are infinite in number.

Using by as a complement

By is not normally selected by infinite.

✕ The field is infinite by size. ✓ The field is infinite in size.

Confusing infinite and infinity

Infinity is the noun form commonly followed by of.

✕ Infinite of possibilities exist. ✓ An infinity of possibilities exist.

Quick practice

Choose the expression that matches the intended meaning.

1. The library is infinite ___ variety.
2. The journey felt infinite ___ us.
3. Choose the standard phrase.

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Frequently asked questions

Is 'infinite of' correct?

Usually no. English normally uses the noun phrase 'an infinity of' instead.

Can I say 'infinite to me'?

Yes. It means something seems endless from your perspective.

Is 'infinite for' common?

It is less common, but it can mean effectively unlimited in a particular situation.

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