| worthwhile(adjective, support, quality, maintenance) |
| acceptable(adjective, characteristic, quality, rationality, relevance) |
| reasonable(adjective, characteristic, quality, rationality, relevance) |
| good(adjective, quality, relevance, applicability) |
| strong(adjective, characteristic, rationality, reliance) |
| eco-friendly(adjective, nature, characteristic, defence) |
| appropriate(adjective, quality, relevance, applicability) |
| balanced(adjective, nature, characteristic, ecology) |
| defendable(adjective, characteristic, rationality, reliance) |
| ecological(adjective, nature, characteristic, ecology) |
| environmental(adjective, nature, characteristic, ecology) |
| natural(adjective, nature, characteristic, ecology) |
| proper(adjective, quality, relevance, applicability) |
| right(adjective, quality, relevance, applicability) |
| secure(adjective, characteristic, rationality, reliance) |
| sound(adjective, characteristic, rationality, reliance) |
| applicable(adjective, quality, relevance, applicability) |
| apposite(adjective, quality, relevance, applicability) |
| apt(adjective, quality, relevance, applicability) |
| arguable(adjective, characteristic, rationality, reliance) |