constancy.

1. The quality of remaining steady or unchanged over time.

2. Unwavering commitment or loyalty to a person or principle.

Use it for

Words that belong together

• constancy of temperature
• relative constancy

On the page

The constancy of the pattern surprised the researchers.

Usage notes

Primary category: academic / formal. Forms: Usually uncountable; no ordinary plural in this sense. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: analysis, description. Commonness: moderately common.