Preposition after adjective

Disastrous for or disastrous to?

Disastrous is most commonly followed by for when talking about harmful effects. Disastrous to is also used, especially before a person, organisation, or system affected by something.

Quick answer

Which preposition is correct after disastrous?

Use disastrous for to describe bad effects on a situation, plan, economy, or result. Use disastrous to before a person, group, or institution that suffers harm. Both are standard, but they focus differently.

The storm was disastrous for local farmers.
The decision proved disastrous to the company's reputation.
The policy could be disastrous for small businesses.

Choose the pattern by meaning

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

1
disastrous for + thing or activity

Showing harmful effects on something

Use disastrous for when something has very bad consequences for a situation, process, industry, or activity.

The cuts were disastrous for public transport.
The heatwave was disastrous for crop production.
2
disastrous to + person or organisation

Showing damage to people or institutions

Use disastrous to when emphasising the person, group, or organisation harmed by something.

The scandal was disastrous to her career.
The leak proved disastrous to investor confidence.
3
disastrous for + someone's chances

Talking about negative impact on success

For is common when discussing opportunities, prospects, or outcomes.

The mistake was disastrous for his chances of promotion.
The delay could be disastrous for the project timeline.

See the difference in context

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

Construction
Example
Meaning
disastrous for
The drought was disastrous for agriculture.
Emphasises harmful effects on a situation, field, or activity.
disastrous to
The accusation was disastrous to his public image.
Emphasises the person or institution that suffered damage.
disastrous for someone
The merger was disastrous for employees.
Also standard when referring to people affected by something.
disastrous to do something
It would be disastrous to ignore the warning signs.
To can introduce an infinitive with a different grammatical role, not a preposition after disastrous.

Common mistakes

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

Using to when talking about a general situation

For is usually more natural with activities, industries, and situations.

✕ The policy was disastrous to tourism. ✓ The policy was disastrous for tourism.

Confusing prepositional to with infinitive to

In phrases like disastrous to ignore the facts, to is part of the infinitive.

✓ It was disastrous to delay the response.

Using disastrous without a clear target

The adjective normally refers to bad consequences for someone or something.

✕ The meeting was disastrous. ✓ The meeting was disastrous for team morale.

Quick practice

Choose the expression that matches the intended meaning.

1. The new tax rules were disastrous ___ small companies.
2. The scandal was disastrous ___ the minister's career.
3. It would be disastrous ___ ignore the safety report.

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Frequently asked questions

Is disastrous for more common than disastrous to?

Disastrous for is especially common with situations, industries, and results. Disastrous to is often used with people, organisations, and reputations.

Can I use disastrous for with people?

Yes. You can say something was disastrous for employees, students, or families.

Is disastrous at correct?

No. Disastrous is not normally followed by at.

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