Cool MateReliability vs Stability
When to use each in English, with meaning, register, and examples.
Reliability
Top 2,000 (common)C1noun
Stability
Top 2,000 (common)C1noun
| Reliability | Stability | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/rɪˌlaɪəˈbɪləti/"]/🇺🇸 /["/rɪˌlaɪəˈbɪləti/"]/ | 🇬🇧 /["/stəˈbɪləti/"]/🇺🇸 /["/stəˈbɪləti/"]/ |
| Meaning | How trustworthy or dependable something is. | The state of being steady and not likely to change. |
| Example | The incident cast doubt on her motives and reliability. | The stability of the bridge was tested under extreme weather conditions. |
| Register | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 2,000 (common) |
| CEFR level | C1 | C1 |
| Part of speech | noun | noun |
| Collocations | reliability of systems, test reliability, brand reliability | greater, increased, relative, degree, level, achieve, bring, ensure, a lack of stability, peace and stability, a period of stability |
| Antonyms | unreliability, instability, inconsistency | instability, unsteadiness, insecurity |
| Common mistakes | Confused with 'reliant' which describes dependence., Using 'reliability' incorrectly in plural form, e.g., 'reliabilities'., Mixing up the meaning with 'belief' or 'hope'. | Confused with 'stabilize' (verb form)., Incorrectly using 'stability' as a verb., Assuming it only applies to physical objects. |
| Usage notes | Use 'reliability' in discussions about performance, trust, and dependability. It's appropriate in both formal and casual contexts, but avoid it in overly casual conversations. | Use 'stability' when discussing reliability or calmness, such as in politics or structures. Avoid in overly casual conversation. |
See it in real clips
Frequently asked questions: Reliability vs Stability
What's the difference between Reliability and Stability?
Reliability: How trustworthy or dependable something is. Stability: The state of being steady and not likely to change.
Are Reliability and Stability the same CEFR level?
Reliability: C1, Stability: C1 on the CEFR scale.
What part of speech are Reliability and Stability?
Reliability: noun, Stability: noun.
Can you show an example of each?
Reliability: The incident cast doubt on her motives and reliability. Stability: The stability of the bridge was tested under extreme weather conditions.
Can I use Reliability and Stability interchangeably?
Not always. Reliability and Stability 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.