| peaceable |
| polite(correct, tidy, particular, fussy, demure) |
| precise |
| rational(adjective, sound, logical, applied, hands-on) |
| scrupulous(adjective, exact, careful, regular, precise) |
| smart(adjective, elegant, straight, tidy, slick) |
| spick and span(expression, adjective, idiom, smart, neat) |
| stable(adjective, calm, smooth, steady, temperate) |
| stainless(adjective, clear, simple, bright, clean) |
| standard(adjective, ordinary, usual, regular) |
| steady(adjective, calm, smooth, ordinary, usual) |
| taintless(adjective, clear, simple, bright, clean) |
| taut(adjective, order, clean) |
| tidily(adverb, cleanly) |
| tight |
| trig(adjective, order, clean, neat) |
| unbroken(adjective, even, rigid, inflexible, reliable) |
| uninterrupted |
| unruffled(calm, smooth, steady, temperate, composed) |
| unsullied(adjective, clear, simple, bright, clean) |