Constant vs The system's stable

When to use each in English, with meaning, register, and examples.

Constant

Top 2,000 (common)B2adjective

The system's stable

Top 2,000 (common)
 ConstantThe system's stable
Pronunciation🇬🇧 /["/ˈkɒnstənt/"]/🇺🇸 /["/ˈkɑːnstənt/"]/🇬🇧 //ðə ˈsɪstəmz ˈsteɪbəl//🇺🇸 //ðə ˈsɪstəmz ˈsteɪbəl//
MeaningSomething that stays the same and doesn't change.The system is working without problems.
ExampleShe is a constant source of inspiration for her team.After the update, the system's stable now.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)
CEFR levelB2-
Part of speechadjective
Collocationsbe, remain, stay, fairly, reasonably, relatively, across, over, be, remain, stay, fairly, reasonably, relatively, across, oversystem stability, remain stable, ensure stability, stable environment, stable operations
Antonymsvariable, changing, inconstant-
Common mistakes'Constant' confused with 'constant' meaning an unchanged quantity in mathematics., 'Constantly' used incorrectly as an adjective instead of adverb., 'Constants' misused in plural form when referring to singular concepts.'Stable' confused with 'staple' (meaning basic or essential)., Incorrectly using 'stably' in place of 'stable' in sentences., Using 'stable' to describe changes that are actually volatile.
Usage notesUse 'constant' when discussing something that remains unchanged over time. It can be used in both formal and informal contexts, but is often used in academic or scientific discussions.Use 'stable' when discussing technology or systems that are reliable. Avoid in casual conversations.

See it in real clips

The system's stable

Frequently asked questions: Constant vs The system's stable

What's the difference between Constant and The system's stable?

Constant: Something that stays the same and doesn't change. The system's stable: The system is working without problems.

Can you show an example of each?

Constant: She is a constant source of inspiration for her team. The system's stable: After the update, the system's stable now.

Can I use Constant and The system's stable interchangeably?

Not always. Constant and The system's stable 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.

Related comparisons