| clincher(argument, proof, argumentation) |
| consequential(adjective, significant, effective, forceful, weighty) |
| dynamic(adjective, strong, energetic, violent, powerful) |
| good(adjective, sound, right, reasonable, honest) |
| impactful |
| legitimate(adjective, clear, sound, reasonable, sensible) |
| meaningful(adjective, sharp, significant, short, compact) |
| plausible(adjective, clear, sound, reasonable, sensible) |
| potent argument(argument, proof, argumentation) |
| reasonable evidence(argument, proof, argumentation) |
| satisfying(adjective, good, clear, reasonable, sensible) |
| smasher(argument, proof, argumentation) |
| substantial(sound, reasonable, rational) |
| valid argument(argument, proof, argumentation) |
| valid reason(argument, proof, argumentation) |
| well-grounded(adjective, good, sound, correct, reasonable) |
| authoritative(adjective, strong, sound, reasonable, energetic) |
| credible(sound, reasonable, solid, rational, realistic) |
| efficacious(adjective, strong, power, sound, reasonable) |
| intelligent(adjective, clear, sound, reasonable, sensible) |