regular

accepted accustomed accurate amicable average blank businesslike certain characteristic changeless commonest common conformable constant continual continuous conventional correct customary cyclical daily dull dull duller duller equable even faithfully formal frequenter general good gradual gradational habitual habitué horizontal innate instinctual instinctive intimate invariable invariant isochronous isochronal judicial just legitimate level mainstream measured methodic methodical methodical/methodic monochromatic more constant more correct more certain more even more accurate more formal more methodical more methodical more methodic more methodic more normal more readable more solid more orderly more prevalent more natural more uniform most correct most certain most punctual most methodic most methodic most methodical most methodical natural neat neatest neater normal old school old-school orderly pandemic paradigmatic periodic plane planar prevailing prevalent prototypic prototypical prototypal punctual readable recurrent round-the-clock routine run-of-the-mill sequential set shapely sincerest sincere smoothest smooth smoother sociable solid standing stated steady-going step-by-step steady steady stocker stock stuporous symmetrical symmetric systematical systematic through time-honored traditional trig truer truest true typic typical unbroken uniform universal unremitting unwavering usual veridical virtuous wonted