| persuasive(adjective, clear, strong, great, direct) |
| convincing(adjective, good, clear, strong, great) |
| strong(adjective, clear, sound, reasonable, energetic) |
| telling(verb, adjective, good, clear, strong) |
| forceful(adjective, clear, strong, direct, tough) |
| compelling(adjective, clear, strong, great, direct) |
| effective(adjective, clear, strong, power, great) |
| powerful(adjective, clear, strong, power, great) |
| valid(adjective, good, clear, power, direct) |
| sound(noun, adjective, good, reasonable, reason) |
| potent(adjective, clear, strong, great, direct) |
| weighty(adjective, clear, strong, great, sound) |
| solid(adjective, good, clear, sound, reasonable) |
| forcible(adjective, clear, strong, direct, energetic) |
| logical(adjective, clear, sound, reasonable, sensible) |
| influential(adjective, clear, strong, great, important) |
| impressive(adjective, strong, energetic, capable, effective) |
| incontrovertible(adjective, ideal, all time, the best) |
| indisputable(adjective, ideal, all time, the best) |
| certain(adjective, ideal, all time, the best) |