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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
throw a curveball
Grammar usage guide and real-world examplesUSAGE SUMMARY
"throw a curveball" is a correct and common expression in spoken and written English.
It can be used in various contexts, but it is often used in sports or in situations where someone is surprised or caught off guard. Example: "The pitcher threw a curveball that completely fooled the batter and struck him out."
✓ Grammatically correct
News & Media
Wiki
Alternative expressions(20)
shake things up
spring a surprise
rock the boat
take an unexpected turn
deviate from the norm
catch someone off guard
deviate from the standard
put a spin on it
break present
break the stable
give it a bend
give it a spin
question authority
stir the pot
add a spin
break up the status quo
give it a rotation
break the status quo
giving it a twist
breaking the status quo
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
46 human-written examples
Throw a curveball.
News & Media
And you know how I learned to throw a curveball?
News & Media
There are several ways to throw a curveball.
News & Media
And you never know who will show up, midseason, to throw a curveball into the mix.
News & Media
He taught me how to type, throw a curveball, use chopsticks and shave.
News & Media
If he could throw a curveball like Koufax, Bacsik said, he would be truly successful.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
14 human-written examples
Then he threw a curveball.
News & Media
You're constantly being thrown a curveball".
News & Media
The Herons are throwing a curveball.
News & Media
Then he throws a curveball away which evens the count.
News & Media
He threw a curveball to Ivan Rodriguez that reminded him.
News & Media
Expert writing Tips
Best practice
When using "throw a curveball" metaphorically, ensure the context clearly establishes whether the surprise is intended to be beneficial, neutral, or detrimental to the recipient. This avoids ambiguity in your message.
Common error
Avoid using "throw a curveball" when the surprise is a simple oversight or mistake. The phrase implies a deliberate action, often with the intention to challenge or disrupt, not just an accident.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The idiomatic expression "throw a curveball" primarily functions as a verb phrase. It's used to describe the action of introducing an unexpected element or surprise into a situation, often to challenge or disrupt. Ludwig AI confirms its usage across diverse contexts.
Frequent in
News & Media
58%
Wiki
14%
Formal & Business
9%
Less common in
Reference
6%
Science
6%
Encyclopedias
0%
Ludwig's WRAP-UP
The phrase "throw a curveball" is a common idiom used to describe introducing an unexpected change or surprise, often with the intent to challenge or disrupt. Grammatically correct and widely accepted, as Ludwig AI confirms, it frequently appears in news and media, as well as in more informal contexts like Wiki articles. When employing this phrase, it's important to ensure the context makes clear whether the surprise is meant to be positive, negative, or neutral. Related phrases include "introduce a surprise element" and "deviate from the expected path". While versatile, avoid using "throw a curveball" to describe unintentional mistakes, as it implies a deliberate action.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
introduce a surprise element
Focuses on the act of introducing something unexpected, downplaying the deception aspect of a curveball.
spring a surprise
Highlights the element of surprise, suitable when the aim is to startle or delight.
present an unexpected challenge
Emphasizes the challenging nature of the surprise, suitable when the unexpected event creates difficulty.
blindside
Emphasizes the unexpected and negative impact on the recipient.
deviate from the expected path
Highlights the departure from the anticipated course of action.
alter expectations
Highlights how the unexpected change affects what others thought was going to happen.
change the plan unexpectedly
Directly refers to altering a plan, lacking the subtlety of "throw a curveball".
rock the boat
Describes an action that disrupts the status quo, often with negative consequences.
do something out of the ordinary
Focuses on unconventional behavior, broader than the specific concept of a curveball.
shake things up
Indicates a desire to create change and excitement, without necessarily implying deception or malice.
FAQs
How can I use "throw a curveball" in a sentence?
You can use "throw a curveball" to describe introducing an unexpected element or surprise. For example: "The company decided to "introduce a surprise element" into their marketing campaign to attract more customers."
What does it mean to "throw a curveball" in business?
In business, "throw a curveball" often means to introduce an unexpected strategy, product, or change that disrupts the current market or challenges competitors. It is similar to "altering expectations".
What's a situation where it's not appropriate to use "throw a curveball"?
It's not appropriate to use "throw a curveball" when describing a simple mistake or unintentional error. The phrase implies a deliberate and strategic action, like "introduce a surprise element", not an accident.
Are there negative connotations to using the phrase "throw a curveball"?
Yes, "throw a curveball" can have negative connotations because it implies deception or manipulation. Consider alternatives like "shake things up" or "deviate from the expected path" if you want to avoid potential negative interpretations.
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested