Historique

routine

[1]	custom , modus operandi , habit , procedure , practice , method , schedule , plan , programme , formula , pattern , way , usage , wont , (Colloq) (Mainly Brit) drill
[2]	act , act , number , piece , bit , turn , bit , performance , number , part , (Colloq) thing , shtick
[3]	subroutine , subprogram , procedure , function

adj.

[1]	customary , habitual , usual , rote , accustomed , familiar , conventional , regular , ordinary , everyday , programmed , assigned , designated , scheduled
[2]	boring , everyday , mundane , tedious , tiresome , quotidian , unremarkable , unimaginative , uninteresting , workaday , hackneyed , trite , stereotypic(al) , cliched , run-of-the-mill , ordinary , unvaried , unvarying , unchanging , monotonous , uneventful , rote , automatic , mechanical , perfunctory