Cool MateInappropriate vs Not cool
When to use each in English, with meaning, register, and examples.
Inappropriate
Top 2,000 (common)C1adjective
Not cool
InformalTop 2,000 (common)
Most formal: Inappropriate
| Inappropriate | Not cool | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/ˌɪnəˈprəʊpriət/"]/🇺🇸 /["/ˌɪnəˈprəʊpriət/"]/ | 🇬🇧 //nɒt kuːl//🇺🇸 //nɑt kul// |
| Meaning | not suitable or proper | Not acceptable or nice. |
| Example | **inappropriate behaviour/language** | It was really not cool to cancel at the last minute. |
| Register | Neutral | Informal |
| How common | Top 2,000 (common) | Top 2,000 (common) |
| CEFR level | C1 | - |
| Part of speech | adjective | |
| Collocations | be, seem, become, extremely, fairly, very, for, to | that's not cool, not cool at all, totally not cool |
| Antonyms | appropriate, suitable, fitting | - |
| Common mistakes | Confused with 'unprofessional' – as not all inappropriate actions are unprofessional., Using it in contexts that require a more informal expression., Overusing in casual conversations where a simpler term like 'wrong' would suffice. | Using 'not cool' in very formal contexts, which can seem unprofessional., Assuming everyone understands 'not cool' as slang; it may not be clear to all audiences., Confusing with similar phrases that are more severe, like 'unacceptable'. |
| Usage notes | Use 'inappropriate' to describe something that is not suitable for a situation. It is often used in formal settings to address behavior or language that is not acceptable. | Use this phrase in casual conversations when something is disappointing or inappropriate. It’s not suitable for formal situations. |
Frequently asked questions: Inappropriate vs Not cool
What's the difference between Inappropriate and Not cool?
Inappropriate: not suitable or proper Not cool: Not acceptable or nice.
Which is more formal: Inappropriate and Not cool?
Inappropriate is the most formal of these.
Can you show an example of each?
Inappropriate: **inappropriate behaviour/language** Not cool: It was really not cool to cancel at the last minute.
Can I use Inappropriate and Not cool interchangeably?
Not always. Inappropriate and Not cool 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.