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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
act fast and decisively
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "act fast and decisively" is correct and usable in written English.
You can use it when advising someone to take quick and firm action in a situation that requires urgency. Example: "In a crisis, it's important to act fast and decisively to mitigate any potential damage."
✓ Grammatically correct
News & Media
Wiki
Formal & Business
Alternative expressions(2)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
2 human-written examples
Fearful about the plunging stock market, Republicans say that they have to act fast and decisively to restore investor confidence before the elections.
News & Media
"And when something really good comes up, you must act fast and decisively, especially for the nicest homes".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
"We were able to act faster and more decisively," says Fisher.
News & Media
People in Taiwan suddenly expect Tsai to act faster and more decisively on sticky issues that they felt her predecessor, Ma Ying-jeou, failed to resolve, political analysts and polls have found.
News & Media
The attorney general, Yehuda Weinstein, called on public agencies "to act fast, efficiently and decisively," adding that "behavior aimed at preventing women from receiving public services with equal conditions" should be subject to criminal prosecution.
News & Media
"Government must be able to move fast and decisively.
News & Media
Many systems, such as the UK UCAS system, has a process to help those who can't find places find them but places go fast so you have to act quickly and decisively.
Wiki
To meet the challenge of global warming, Congress must act quickly and decisively to pass strong, science-based legislation that reduces global warming pollution fast enough to protect future generations.
News & Media
If anyone comes to London intending to commit criminal acts, we will act quickly, robustly and decisively".
News & Media
We must act immediately and decisively".
News & Media
We need to act now, and decisively.
News & Media
Expert writing Tips
Best practice
When using "act fast and decisively", ensure the context warrants both speed and firmness. Avoid using it in situations where careful consideration is more important than rapid action.
Common error
A common mistake is to prioritize speed when using "act fast and decisively", which can lead to errors or oversights. Ensure that while acting quickly, accuracy and thoroughness are not compromised.
Source & Trust
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "act fast and decisively" functions as an imperative, urging someone to take prompt and resolute action. Ludwig indicates that this phrase is grammatically correct and used in contexts where quick and firm action is necessary.
Frequent in
News & Media
65%
Wiki
20%
Formal & Business
15%
Less common in
Science
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "act fast and decisively" is a grammatically correct imperative that urges quick and firm action. Ludwig confirms its validity and demonstrates its usage across various contexts. While not overly formal, this phrase is most frequently found in news and media, wiki, and formal business settings. The expert rating reflects its correctness, consistent usage, and source authority. Alternatives like "take swift and decisive action" or "move quickly and decisively" can be used to convey a similar meaning with slight variations in emphasis. Remember to consider the context and prioritize accuracy alongside speed when employing this phrase.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
take swift and decisive action
Replaces "act" with "take action" and uses "swift" as a synonym for "fast".
move quickly and decisively
Substitutes "act" with "move" and maintains a similar structure.
respond promptly and resolutely
Replaces "act" with "respond" and "fast" with "promptly", also using "resolutely" in place of "decisively".
operate swiftly and decisively
Uses "operate" instead of "act," implying a more formal or procedural approach.
intervene rapidly and decisively
Implies taking action to mediate or get involved, using "rapidly" for "fast".
address immediately and decisively
Suggests dealing with a problem or issue, replacing "fast" with "immediately".
tackle quickly and resolutely
Uses "tackle" to mean address a situation, with "resolutely" for emphasis.
implement swiftly and decisively
Refers to putting a plan or decision into effect, with an emphasis on speed and firmness.
execute promptly and decisively
Implies carrying out an action with efficiency and determination.
proceed without hesitation
Focuses on the decisiveness aspect, implying a lack of delay or doubt.
FAQs
How to use "act fast and decisively" in a sentence?
You can use "act fast and decisively" when you want to emphasize the need for quick and firm action in a particular situation. For example, "In a crisis, it's important to act fast and decisively to mitigate any potential damage."
What can I say instead of "act fast and decisively"?
You can use alternatives like "take swift and decisive action", "move quickly and decisively", or "respond promptly and resolutely", depending on the context.
Which is correct, "act fast and decisively" or "act decisively and fast"?
Both phrases are grammatically correct, but "act fast and decisively" is more commonly used. The order of words affects the emphasis, but the meaning remains largely the same.
What's the difference between "act fast and decisively" and "think carefully and deliberately"?
"Act fast and decisively" implies a need for immediate action with a firm approach, whereas "think carefully and deliberately" suggests a more cautious and thoughtful approach before taking any action. They are essentially opposite approaches.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
4.1/5
Expert rating
Real-world application tested