Constant
Persistent
Synonyms Continual, persistent, abiding, ceaseless, perpetual, never-ending, eternal, unending, non-stop, unbroken, unrelieved, unremitting, unrelenting, sempiternal, steady, determined, tenacious, unwavering, unshaken, continuous, sustained, round-the-clock, unceasing, incessant, everlasting, endless, unabating, perennial, uninterrupted, interminable, relentless, without respite, steadfast, resolute, persevering, dogged, and unflagging.
Regular
Synonyms Consistent, stable, fixed, even, invariable, unchanging, undeviating, immutable, regular, steady, uniform, level, unvarying, changeless, and unfluctuating.
Loyal
Example Sentences
The sun rises daily.
Cats love to sleep.
Time flies too quickly.
Birds sing every morning.