constant meaning and definition

CONSTANT noun

Definition of constant (noun)

1. a quantity that does not vary
   • synonyms: constant quantity, invariable
2. a number representing a quantity assumed to have a fixed value in a specified mathematical context
   • "the velocity of light is a constant"

CONSTANT adjective

Definition of constant (adjective)

1. unvarying in nature
   • "maintained a constant temperature"; "principles of unvarying validity"
   • synonyms: changeless, invariant, unvarying
2. steadfast in purpose or devotion or affection
   • "a man constant in adherence to his ideals"; "a constant lover"; "constant as the northern star"
   • antonym: inconstant
3. uninterrupted in time and indefinitely long continuing
   • "the ceaseless thunder of surf"; "in constant pain"; "night and day we live with the incessant noise of the city"; "the never-ending search for happiness"; "the perpetual struggle to maintain standards in a democracy"; "man's unceasing warfare with drought and isolation"; "unremitting demands of hunger"
   • synonyms: ceaseless, incessant, never-ending, perpetual, unceasing, unremitting