| conducive(adjective, useful, participate, result, helpful) |
| supportive(adjective, help, spare, auxiliary) |
| ancillary(adjective, support, help, low, spare) |
| contributing(adjective, result) |
| contributive(adjective, participate, result) |
| instrumental(adjective, useful, fundamental, secondary, related) |
| subsidiary(noun, adjective, support, help, low) |
| accessory(adjective, support, help, low, spare) |
| auxiliary(adjective, support, help, low, spare) |
| extra(adjective, support, spare, auxiliary, supplementary) |
| subordinate(adjective, support, spare, useful, casual) |
| tributary(noun, adjective, low, subject, minor) |
| adjuvant(adjective, support, low, spare, inferior) |
| collateral(adjective, help, low, subject, minor) |
| helpful(adjective, useful, minor, secondary, favorable) |
| subservient(adjective, support, low, spare, inferior) |
| supplementary(adjective, support, low, inferior, subject) |
| additional |
| causal |
| causative |