Cracked he was vs Unstable

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

Cracked he was

InformalBeyond 10,000 (less common)

Unstable

Top 2,000 (common)B2adjective
Most formal: UnstableMost common: Unstable
 Cracked he wasUnstable
Pronunciation🇬🇧 //krækt hi wəz//🇺🇸 //krækt hi wəz//🇬🇧 //ˌʌnˈsteɪbəl//🇺🇸 //ʌnˈsteɪbəl//
Meaninghe was unstable or unable to copeNot steady or secure, often likely to change or fail.
ExampleAfter the breakup, I could tell he was really cracked he was.The weather in spring can be quite unstable.
RegisterInformalNeutral
How commonBeyond 10,000 (less common)Top 2,000 (common)
CEFR level-B2
Part of speechadjective
Collocationsfeel cracked he was, admit cracked he was, look cracked he wasunstable condition, unstable situation, unstable environment, unstable economy, unstable relationship
Antonyms-stable, secure, steady
Common mistakesConfused with 'cracked up' which means to laugh., Misused in formal contexts where a simpler phrase is preferred.Confused with 'stable' — remember that unstable means not stable., Using it to describe people directly without context—better for situations or conditions.
Usage notesUse 'cracked he was' in casual conversations to describe someone who seems very stressed or has lost their composure. Avoid in formal settings.Used in both everyday and technical contexts. Avoid in conversations where positive connotations are expected.

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Cracked he was
Unstable

Frequently asked questions: Cracked he was vs Unstable

What's the difference between Cracked he was and Unstable?

Cracked he was: he was unstable or unable to cope Unstable: Not steady or secure, often likely to change or fail.

Which is more formal: Cracked he was and Unstable?

Unstable is the most formal of these.

Which is more common: Cracked he was and Unstable?

Unstable is the most common in everyday English.

Can you show an example of each?

Cracked he was: After the breakup, I could tell he was really cracked he was. Unstable: The weather in spring can be quite unstable.

Can I use Cracked he was and Unstable interchangeably?

Not always. Cracked he was and Unstable 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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