Constancy vs Invariability - What's the difference?

constancy | invariability |


As nouns the difference between constancy and invariability

is that constancy is (uncountable) the quality of being constant; steadiness or faithfulness in action, affections, purpose, etc while invariability is the quality of being invariable; invariableness; constancy; uniformity.

constancy

English

Noun

(constancies)
  • (uncountable) The quality of being constant; steadiness or faithfulness in action, affections, purpose, etc.
  • * 1871 , , Descent of Man , ch. 7 "On the Races of Man,"
  • Constancy of character is what is chiefly valued and sought for by naturalists.
  • (countable) An unchanging quality or characteristic of a person or thing.
  • * 1602 , , All's Well That Ends Well , act 1, sc. 2,
  • younger spirits . . .
    whose constancies
    Expire before their fashions.

    References

    * * * * Oxford English Dictionary , 2nd ed., 1989. * Random House Webster's Unabridged Electronic Dictionary , 1987-1996.

    invariability

    English

    Noun

    (head)
  • The quality of being invariable; invariableness; constancy; uniformity.
  • References

    * *