Main entry: constant
Definition: steadfast in purpose or devotion or affection
Usage: a man constant in adherence to his ideals; a constant lover; constant as the northern star
Antonyms: inconstant
Definition: likely to change frequently often without apparent or cogent reason; variable
Main entry: invariant, unvarying, changeless, constant
Definition: unvarying in nature
Usage: maintained a constant temperature; principles of unvarying validity
Antonyms: variable
Definition: liable to or capable of change
Main entry: never-ending, perpetual, unceasing, incessant, constant, ceaseless, unremitting
Definition: uninterrupted in time and indefinitely long continuing
Usage: 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
Antonyms: discontinuous, noncontinuous
Definition: not continuing without interruption in time or space
Antonyms: discontinuous
Definition: of a function or curve; possessing one or more discontinuities