| thorough(adjective, severe, harsh, exceptional, careful) |
| true(adjective, good, close, strong, correct) |
| unbending(adjective, strong, hard, tough, severe) |
| unerring(adjective, correct, honest, solid, exact) |
| attentive(adjective, careful, thorough, meticulous, vigilant) |
| authoritarian(adjective, strong, hard, tough, severe) |
| dour(adjective, tough, severe, firm, harsh) |
| fussy(adjective, hard, tough, harsh, exact) |
| obdurate(adjective, strong, hard, tough, severe) |
| puritanical(adjective, severe, proper, authoritarian, straitlaced) |
| right(adjective, close, hard, correct, severe) |
| stiff(adjective, hard, tough, severe, rough) |
| hidebound(adjective, severe, straight, sober, persistent) |
| inexorable(adjective, strong, hard, tough, severe) |
| set(adjective, strong, severe, flat, firm) |
| sharp(adjective, correct, severe, obscure, harsh) |
| subtle(adjective, feature, slight, sharp, exact) |
| tyrannical(adjective, severity) |
| undeviating(adjective, strong, flat, honest, harsh) |
| veracious(adjective, close, correct, right, appropriate) |