Nouns

(n)routine, modus operandian unvarying or habitual method or procedure
(n)act, routine, number, turn, bita short performance that is part of a longer program“he did his act three times every evening”, “she had a catchy little routine”, “it was one of the best numbers he ever did”
(n)routine, subroutine, subprogram, procedure, functiona set sequence of steps, part of larger computer program

Adjectives

(s)everyday, mundane, quotidian, routine, unremarkable, workadayfound in the ordinary course of events“a placid everyday scene”, “it was a routine day”, “there's nothing quite like a real … train conductor to add color to a quotidian commute” (Anita Diamant)