| serious(adjective, calm, dull, work, open) |
| realistic(adjective, calm, tough, reasonable, sharp) |
| grave(adjective, calm, dull, quiet, cool) |
| staid(adjective, calm, dull, quiet, set) |
| earnest(adjective, calm, dull, quiet, work) |
| down-to-earth(adjective, calm, simple, reasonable, sensible) |
| practical(adjective, calm, simple, tough, reasonable) |
| sedate(adjective, calm, dull, quiet, cool) |
| sober(adjective, calm, dull, quiet, cool) |
| solemn(adjective, calm, dull, quiet, cool) |
| somber(adjective, calm, dull, quiet, cool) |
| weighty(adjective, dull, severe, honest, dark) |
| businesslike(adjective, work, sharp, heavy, practical) |
| direct(adjective, intolerant) |
| straight(adjective, open, tough, severe, firm) |
| bluff(adjective, abrupt) |
| efficient(adjective, practical, realistic, intolerant) |
| stern(adjective, set, tough, severe, firm) |
| candid(open, rough, honest, true, short) |
| frank(open, rough, honest, true, short) |