Cool MateUnbelievable vs What a world
When to use each in English, with meaning, register, and examples.
Unbelievable
Top 1,000 (very common)
What a world
InformalTop 5,000 (fairly common)
Most formal: UnbelievableMost common: Unbelievable
| Unbelievable | What a world | |
|---|---|---|
| Pronunciation | 🇬🇧 //ʌn.bɪˈliː.və.bəl//🇺🇸 //ʌn.bɪˈlivə.bəl// | 🇬🇧 //wɒt ə wɜːld//🇺🇸 //wɑt ə wɜrld// |
| Meaning | Not able to be believed; hard to accept as true. | An expression of surprise or disbelief about life or a situation. |
| Example | His story about climbing Everest without oxygen was simply unbelievable. | When I saw the price of that luxury car, I thought, 'What a world!' |
| Register | Neutral | Informal |
| How common | Top 1,000 (very common) | Top 5,000 (fairly common) |
| Collocations | unbelievable story, unbelievable situation, unbelievable coincidence, unbelievable talent, unbelievable prices | what a surprise, what a life, what a moment |
| Antonyms | credible, believable, plausible | - |
| Common mistakes | Confused with 'incredible' - both mean similar things but can have different connotations., Used too casually in serious contexts., Often mispronounced by stressing the wrong syllable. | Using it too seriously; it's meant to be light-hearted., Mispronouncing the phrase or not emphasizing the 'what'., Not using it in appropriate situations where surprise is evident. |
| Usage notes | Used to express astonishment or disbelief. It can be positive or negative depending on context (e.g., an unbelievable achievement vs. an unbelievable lie). | "What a world" is often used to comment on surprising or outrageous events. It's informal, so avoid using it in formal contexts. |
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Frequently asked questions: Unbelievable vs What a world
What's the difference between Unbelievable and What a world?
Unbelievable: Not able to be believed; hard to accept as true. What a world: An expression of surprise or disbelief about life or a situation.
Which is more formal: Unbelievable and What a world?
Unbelievable is the most formal of these.
Which is more common: Unbelievable and What a world?
Unbelievable is the most common in everyday English.
Can you show an example of each?
Unbelievable: His story about climbing Everest without oxygen was simply unbelievable. What a world: When I saw the price of that luxury car, I thought, 'What a world!'
Can I use Unbelievable and What a world interchangeably?
Not always. Unbelievable and What a world 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.