Absurd vs That was so crazy

When to use each in English, with meaning, register, and examples.

Absurd

Top 5,000 (fairly common)C1

That was so crazy

InformalTop 2,000 (common)
Most formal: AbsurdMost common: That was so crazy
 AbsurdThat was so crazy
Pronunciation🇬🇧 //əbˈsɜːd//🇺🇸 //əbˈsɜrd//🇬🇧 //ðæt wəz səʊ ˈkreɪ.zi//🇺🇸 //ðæt wəz soʊ ˈkreɪ.zi//
MeaningSomething that is very unreasonable or silly.Something very surprising or difficult to believe.
ExampleThe idea that the earth is flat is absolutely absurd.Did you see that circus performance? That was so crazy!
RegisterNeutralInformal
How commonTop 5,000 (fairly common)Top 2,000 (common)
CEFR levelC1-
Collocationsabsurd idea, absurd situation, absurd behaviorso crazy funny, that was so crazy fun, that was so crazy unexpected
Antonymsreasonable, sensible, logical-
Common mistakesUsing 'absurd' when 'ridiculous' is more appropriate., Confusing 'absurd' with 'absentee'., Overusing 'absurd' in less serious situations.Using 'crazy' to describe serious issues, which can be seen as insensitive., Misusing 'that' when referring to less specific situations., Using it in overly formal situations, which sounds unnatural.
Usage notesUsed to describe something that is irrational or illogical. Often used in both formal and informal contexts, but may be less common in casual conversation.Used in casual conversations to express disbelief or astonishment about a situation. Avoid in formal or academic contexts.

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Absurd
That was so crazy

Frequently asked questions: Absurd vs That was so crazy

What's the difference between Absurd and That was so crazy?

Absurd: Something that is very unreasonable or silly. That was so crazy: Something very surprising or difficult to believe.

Which is more formal: Absurd and That was so crazy?

Absurd is the most formal of these.

Which is more common: Absurd and That was so crazy?

That was so crazy is the most common in everyday English.

Can you show an example of each?

Absurd: The idea that the earth is flat is absolutely absurd. That was so crazy: Did you see that circus performance? That was so crazy!

Can I use Absurd and That was so crazy interchangeably?

Not always. Absurd and That was so crazy are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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