| formal(adjective, established, conformity, orderly) |
| hard-boiled(adjective, strong, hard, tough, severe) |
| obstinate(adjective, hard, tough, moderate, severe) |
| precision(noun, adjective, exact, scrupulous, detailed) |
| religious(adjective, absolute, accurate, probity) |
| ruthless(adjective, hard, rough, harsh, cruel) |
| square(adjective, moderate, severe, firm, harsh) |
| steadfast(adjective, close, strong, correct, flat) |
| straight(adjective, close, correct, moderate, severe) |
| trustworthy(adjective, good, close, correct, fair) |
| unsympathetic(adjective, tough, severe, harsh, cruel) |
| uptight(adjective, tough, severe, firm, informal) |
| abstemious |
| ascetic |
| astringent(adjective, strong, hard, tough, severe) |
| censorious(adjective, severe, fastidiousness) |
| complete(adjective, exact, careful, precise, flawless) |
| constant(adjective, close, strong, correct, flat) |
| defined(adjective, close, correct, solid, exact) |
| despotic |