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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
not bad
Grammar usage guide and real-world examplesUSAGE SUMMARY
"not bad" is a perfectly fine and usable phrase in written English.
It is often used to mean that something is acceptable, or slightly above average. For example: "I just got my report card back, and my grades are not bad."
✓ Grammatically correct
News & Media
Academia
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
40 human-written examples
Not bad, not bad.
Academia
Not bad.
Academia
not bad.
News & Media
(Not bad, not great).
News & Media
Not bad at all.
Academia
"Not great, not bad".
News & Media
Notting Hill: not bad.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
4 human-written examples
It ain't bad".
News & Media
It wasn't bad.
News & Media
That isn't bad.
News & Media
It isn't bad.
News & Media
Expert writing Tips
Best practice
When using "not bad" in formal writing, consider whether a more precise or enthusiastic adjective would be more appropriate to convey the intended meaning. Context matters!
Common error
Avoid relying on "not bad" in formal settings like business reports or academic papers. It can sound too casual or vague. Opt for stronger, more descriptive adjectives like "satisfactory", "acceptable", or "commendable" to convey a more professional tone.
Source & Trust
87%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "not bad" functions primarily as an adjective phrase, offering a mildly positive assessment of something. As Ludwig AI states, it indicates something is acceptable or slightly above average. Examples show its use in evaluating performance, quality, or outcomes.
Frequent in
News & Media
65%
Academia
20%
Wiki
5%
Less common in
Science
5%
Formal & Business
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, the phrase "not bad" serves as a versatile expression of mild approval or satisfaction. It's grammatically sound and frequently used, although its formality leans towards neutral or informal contexts. Ludwig AI confirms that it's "perfectly fine and usable in written English", indicating acceptability. When you need stronger endorsements, consider options like "quite good" or "pretty good". For more formal writing, using words like "acceptable" or "satisfactory" might fit better. Overall, "not bad" is a handy phrase when you want to avoid overly enthusiastic approval and remain moderately positive. It's especially useful to temper criticism or express a sense of reserved optimism.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
not half bad
An emphatic way of saying "not bad", suggesting it's surprisingly good.
pretty good
Similar in meaning, but slightly more informal.
alright
A more casual and brief way of saying "not bad".
quite good
Emphasizes a slightly higher degree of approval than "not bad".
reasonably good
Emphasizes the quality is within reasonable expectations.
satisfactory
Indicates that something meets expectations.
decent enough
Highlights the adequacy or sufficiency of something.
acceptable
Focuses on meeting a minimum standard or requirement.
passable
Suggests something is just good enough, perhaps with flaws.
fair enough
Implies acceptance or agreement, rather than just assessment of quality.
FAQs
How can I use "not bad" in a sentence?
"Not bad" is generally used to express a mild approval or satisfaction. For example, "The movie wasn't bad, but it wasn't great either" or "Your presentation was not bad for your first time".
What's a more formal alternative to "not bad"?
In more formal settings, you can use alternatives like "acceptable", "satisfactory", or "reasonably good" to maintain a professional tone.
Is "not bad" grammatically correct?
Yes, "not bad" is grammatically correct and commonly used in spoken and written English. It functions as an adjective phrase expressing a positive, though not enthusiastic, assessment.
What does "not half bad" mean, and how does it differ from "not bad"?
"Not half bad" is an idiom that means "surprisingly good" or "quite good". It's a stronger expression of approval than just "not bad", implying that something exceeded expectations. It is an emphatic way of saying "quite good".
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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
87%
Authority and reliability
4.1/5
Expert rating
Real-world application tested