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Prepositions after adjectives

Uniform in or uniform across?

Both uniform in and uniform across are correct, but they express different ideas. Uniform in refers to a quality, while uniform across refers to consistency between areas or groups.

Quick answer

Uniform in vs. uniform across

Use uniform in before a characteristic or quality. Use uniform across when comparing different regions, groups, systems, or categories.

The students were uniform in appearance.
Prices are uniform across all stores.
The walls are uniform in colour.
Rules must be uniform across departments.

Choose the pattern by meaning

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

1
uniform in + quality

Describing sameness in a feature

Use uniform in with characteristics such as colour, size, or style.

The houses are uniform in design.
The fabric is uniform in texture.
2
uniform across + groups or areas

Showing consistency between categories

Use uniform across for consistency among places, systems, or groups.

Standards should be uniform across schools.
The software works uniform across devices.
3
uniform throughout + place

Showing consistency everywhere within something

Throughout emphasises consistency within a whole area or object.

The temperature remained uniform throughout the building.
Lighting was uniform throughout the stadium.

See the difference in context

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

Construction
Example
Meaning
uniform in
The rooms are uniform in size.
same in a particular quality
uniform across
Policies are uniform across the company.
consistent between groups or areas
uniform throughout
The colour is uniform throughout the fabric.
consistent in every part of something
uniform among
Opinions were not uniform among the members.
shared similarly within a group

Common mistakes

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

Using in for groups or regions

Use across when comparing multiple areas or categories.

✕ Rules are uniform in all departments. ✓ Rules are uniform across all departments.

Using across before qualities

Use in with features such as size or colour.

✕ The panels are uniform across shape. ✓ The panels are uniform in shape.

Confusing across and throughout

Across compares categories; throughout refers to every part of one thing.

✓ The pattern is uniform throughout the carpet.

Omitting the needed complement

Uniform often needs a phrase showing what is consistent.

✓ The buildings are uniform in style.

Quick practice

Choose the expression that matches the intended meaning.

1. The uniforms are identical and uniform ___ colour.
2. Safety rules must be uniform ___ all branches.
3. The lighting remained uniform ___ the hall.

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Frequently asked questions

Can both uniform in and uniform across be correct?

Yes, but they express different relationships. In refers to qualities, while across refers to categories or areas.

Is uniform across formal English?

Yes. It is common in business, academic, and technical writing.

What is the difference between across and throughout?

Across compares separate groups or areas. Throughout refers to all parts of one thing.

ubiquitous in, on, across, throughout or for? "ugly in", "ugly for" or "ugly of"? ultimate in, of, for, on or as? "unacceptable to", "unacceptable in" or "unacceptable for"? unaccounted for unaccustomed to or in? unacquainted with unaffected by, in, for or with? "unaffordable for" or "unaffordable to"? unanimous in, on, about, regarding or for? "unattractive to" or "unattractive for"? "unavailable for" or "unavailable to"?

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