| Solution | Length | |
|---|---|---|
| 3 letters | ||
| ure | 3 | |
| 4 letters | ||
| true | 4 | |
| hard | 4 | |
| nice | 4 | |
| 5 letters | ||
| close | 5 | |
| exact | 5 | |
| tight | 5 | |
| tough | 5 | |
| rigid | 5 | |
| right | 5 | |
| stern | 5 | |
| sharp | 5 | |
| harsh | 5 | |
| 6 letters | ||
| trueto | 6 | |
| easier | 6 | |
| ramrod | 6 | |
| rugged | 6 | |
| square | 6 | |
| subtle | 6 | |
| severe | 6 | |
| 7 letters | ||
| prudish | 7 | |
| serious | 7 | |
| puritan | 7 | |
| staunch | 7 | |
| austere | 7 | |
| spartan | 7 | |
| refined | 7 | |
| careful | 7 | |
| literal | 7 | |
| precise | 7 | |
| 8 letters | ||
| exacting | 8 | |
| rigorous | 8 | |
| martinet | 8 | |
| accurate | 8 | |
| puristic | 8 | |
| unerring | 8 | |
| militant | 8 | |
| verbatim | 8 | |
| punctual | 8 | |
| priggish | 8 | |
| 9 letters | ||
| martinets | 9 | |
| veridical | 9 | |
| selective | 9 | |
| religious | 9 | |
| stringent | 9 | |
| sensitive | 9 | |
| unsparing | 9 | |
| 10 letters | ||
| scrupulous | 10 | |
| relentless | 10 | |
| TYRANNICAL | 10 | |
| scientific | 10 | |
| REPRESSIVE | 10 | |
| 11 letters | ||
| IMPREGNABLE | 11 | |
| punctilious | 11 | |
| Sabbatarian | 11 | |
| puritanical | 11 | |
| hardandfast | 11 | |
| suppressive | 11 | |
| UNDISTORTED | 11 | |
| undeviating | 11 | |
| straitlaced | 11 | |
| 13 letters | ||
| hard and fast | 13 | |
| 16 letters | ||
| noifsandsorboats | 16 | |