| useful(adjective, tough, clean, pure, fresh) |
| contributory(adjective, useful, participate, result, involved) |
| helpful(adjective, clean, pure, suitable, fresh) |
| advantageous(adjective, clean, pure, agreeable, fresh) |
| instrumental(adjective, useful, tendency, beneficial, secondary) |
| profitable(adjective, tough, clean, pure, fresh) |
| contributive(adjective, good, friendly, appropriate, agreeable) |
| contributing(adjective, related, responsible) |
| subservient(adjective, useful, tendency, collateral, secondary) |
| convenient(adjective, appropriate, suitable, useful, beneficial) |
| valuable(adjective, tough, energetic, useful, effective) |
| beneficial(adjective, clean, pure, agreeable, fresh) |
| accessory(adjective, useful, helpful, collateral, secondary) |
| handy(tough, energetic, suitable, effective, beneficial) |
| tributary(noun, adjective, collateral, subsidiary, subservient) |
| causative |
| fruitful(adjective, productive) |
| serviceable(agreeable, suitable, useful, comfortable, beneficial) |
| symbiotic(useful, beneficial, advantageous) |
| assisting(agreeable, suitable, comfortable, opportune, expedient) |