| required(correct, proper, suitable, flawless, faultless) |
| requisite(correct, proper, suitable, flawless, faultless) |
| seamless(flawless, faultless, textbook) |
| sharp(correct, proper, flawless, faultless, textbook) |
| sheer(flawless, faultless, textbook) |
| simple(flawless, faultless, textbook) |
| skilled(flawless, faultless, textbook) |
| skillful(flawless, faultless, textbook) |
| so |
| sound(flawless, faultless, textbook) |
| splendid(flawless, faultless, textbook) |
| spot-on |
| spotless(flawless, faultless, textbook) |
| stainless(flawless, faultless, textbook) |
| strict(correct, proper, flawless, faultless, textbook) |
| sublime(flawless, faultless, textbook) |
| suitable(correct, proper, flawless, faultless, ideal) |
| superb(flawless, faultless, textbook) |
| superlative(flawless, faultless, textbook) |
| supreme(flawless, faultless, textbook) |