Certainty vs Confidence
When to use each in English, with meaning, register, and examples.
Certainty
Top 1,000 (very common)B2noun
Confidence
Top 1,000 (very common)B2noun
| Certainty | Confidence | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/ˈsɜːtnti/"]/🇺🇸 /["/ˈsɜːrtnti/"]/ | 🇬🇧 /["/ˈkɒnfɪdəns/"]/🇺🇸 /["/ˈkɑːnfɪdəns/"]/ |
| Meaning | Being sure about something. | Believing in yourself and your abilities. |
| Example | There is no certainty that the president's removal would end the civil war. | Her confidence in her abilities helped her succeed in the competition. |
| Register | Neutral | Neutral |
| How common | Top 1,000 (very common) | Top 1,000 (very common) |
| CEFR level | B2 | B2 |
| Part of speech | noun | noun |
| Collocations | absolute, complete, near, degree, with certainty, a lack of certainty, the one certainty, the only certainty, absolute, complete, near, degree, with certainty, a lack of certainty, the one certainty, the only certainty | absolute, complete, full, enjoy, feel, have, decline, decrease, fall, confidence about, confidence among, confidence between, a crisis of confidence, have every confidence, have the utmost confidence, considerable, enormous, great, have, demonstrate, display, drain, drain away, evaporate, boost, booster, builder, with confidence, confidence about, confidence in, a lack of confidence, a loss of confidence, absolute, complete, full, enjoy, have, keep, game, trick, man, in confidence, a breach of confidence, in strict confidence, whispered, exchange, share, keep |
| Antonyms | doubt, uncertainty | insecurity, doubt, fear |
| Common mistakes | Confused with 'certainty' vs 'certainly', Using 'certainty' with a verb instead of as a noun, Believing it can be used in place of 'sure' in informal contexts | Confusing 'confidence' with 'confident' (adjective) in use., Using 'confidence' in situations requiring a synonym, like 'trust' or 'faith', but meaning differently., Mispronouncing it as 'con-fid-ence' instead of 'con-fi-dence'. |
| Usage notes | Used in both written and spoken contexts. More formal than 'sure'. Appropriate in academic or serious discussions, but can also be used casually to emphasize confidence. | Use 'confidence' in both casual and formal contexts. It's appropriate when discussing self-belief, particularly in academic or professional settings. |
See it in real clips
Frequently asked questions: Certainty vs Confidence
What's the difference between Certainty and Confidence?
Certainty: Being sure about something. Confidence: Believing in yourself and your abilities.
Are Certainty and Confidence the same CEFR level?
Certainty: B2, Confidence: B2 on the CEFR scale.
What part of speech are Certainty and Confidence?
Certainty: noun, Confidence: noun.
Can you show an example of each?
Certainty: There is no certainty that the president's removal would end the civil war. Confidence: Her confidence in her abilities helped her succeed in the competition.
Can I use Certainty and Confidence interchangeably?
Not always. Certainty and Confidence 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.