| momentous(adjective, characteristic, strength, effectiveness) |
| persuasive(adjective, characteristic, strength, effectiveness) |
| potent(adjective, characteristic, strength, effectiveness) |
| puissant(adjective, characteristic, strength, effectiveness) |
| satisfactory(adjective, characteristic, strength, effectiveness) |
| satisfying(adjective, characteristic, strength, effectiveness) |
| significant(adjective, characteristic, strength, effectiveness) |
| sound(adjective, characteristic, strength, effectiveness) |
| valid(adjective, characteristic, strength, effectiveness) |
| weighty(adjective, characteristic, strength, effectiveness) |
| well-grounded(adjective, characteristic, strength, effectiveness) |
| man up(verb, phrasal verb, action, boldness, bravery) |
| apposite(adjective, characteristic, strength, effectiveness) |
| conclusive(adjective, characteristic, strength, effectiveness) |
| convictive(adjective, characteristic, strength, effectiveness) |
| fitting(adjective, characteristic, strength, effectiveness) |
| inducing(adjective, characteristic, strength, effectiveness) |
| influential(adjective, characteristic, strength, effectiveness) |
| irresistible(adjective, characteristic, strength, effectiveness) |
| meaningful(adjective, characteristic, strength, effectiveness) |