regular

Synonyms: approved bona fide classic commonplace correct customary daily established everyday formal general habitual lawful legitimate natural official ordinary orthodox prevailing prevalent proper routine run-of-the-mill sanctioned standard time-honored traditional typic typical unexceptional unvarying usual

Antonyms: abnormal anomalous eccentric extraordinary irregular rare uncommon unusual

Synonyms: accordant alternating arranged automatic classified congruous consonant constant cyclic dependable efficient established even exact expected fixed flat formal harmonious in order invariable level measured mechanical methodical momentary ordered organized patterned periodic precise probable punctual rational recurrent regulated rhythmic routine serial set smooth standardized stated steady straight successive symmetrical systematic uniform

Antonyms: changing disorderly imbalanced inconsistent infrequent irregular unsteady variable