| stony(adjective, hard, firm, stiff, rigid) |
| straight(adjective, open, direct, honest, modest) |
| substantive(adjective, physical, material, substantial, actual) |
| unalloyed(adjective, complete, continuous, closed, blocked) |
| unbending(adjective, hard, firm, stiff, tense) |
| unbreakable(adjective, strong, hard, tough, severe) |
| unchangeable(adjective, calm, strong, secure, firm) |
| uncut(adjective, complete) |
| unified(adjective, complete, simple, whole, consistent) |
| uninterrupted(verb, adjective, sound, complete, smooth) |
| viscid |
| viscous |
| well-constructed(complete, vigorous, sturdy) |
| well-grounded(adjective, good, sound, right, reasonable) |
| accomplished(adjective, cool, great, complete, knowledge) |
| adamant(adjective, rigid) |
| adamantine(adjective, set, strong, hard, severe) |
| appreciable(adjective, substantial) |
| beefy(adjective, person, body, big, heavy) |
| believable(open, honest, sensible, realistic, reliable) |