Cool MateFails vs Sucks
When to use each in English, with meaning, register, and examples.
Fails
Top 2,000 (common)
Sucks
InformalTop 2,000 (common)
Most formal: Fails
| Fails | Sucks | |
|---|---|---|
| Pronunciation | 🇬🇧 //feɪlz//🇺🇸 //feɪlz// | 🇬🇧 //sʌks//🇺🇸 //sʌks// |
| Meaning | doesn't succeed | is bad or unpleasant |
| Example | He always fails to meet the deadline. | This movie really sucks! |
| Register | Neutral | Informal |
| How common | Top 2,000 (common) | Top 2,000 (common) |
| Collocations | fails to understand, fails a test, fails in life | sucks to be, sucks up, sucks at |
| Antonyms | succeeds, achieves, wins | succeeds, excels, impresses |
| Common mistakes | Using 'fails' in the past tense without 'failed', Confusing 'fails' with 'falls', Incorrectly using 'fails' with non-count nouns | Used in formal contexts where it's inappropriate., Confused with 'suck' as a noun rather than a verb., Overusing it as a general complaint. |
| Usage notes | Use 'fails' to describe not succeeding in tasks, goals, or tests. Avoid using in very formal contexts. | Commonly used in casual conversation among friends. It is inappropriate for formal settings and can be considered rude. |
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Frequently asked questions: Fails vs Sucks
What's the difference between Fails and Sucks?
Fails: doesn't succeed Sucks: is bad or unpleasant
Which is more formal: Fails and Sucks?
Fails is the most formal of these.
Can you show an example of each?
Fails: He always fails to meet the deadline. Sucks: This movie really sucks!
Can I use Fails and Sucks interchangeably?
Not always. Fails and Sucks 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.