| vicarial(extra, substitute, auxiliary, supernumerary, back-up) |
| acting(extra, auxiliary, supernumerary, back-up, flipside) |
| alternate(inferior, extra, minor, substitute, subordinate) |
| alternative(extra, auxiliary, supernumerary, back-up, flipside) |
| ancillary(adjective, inferior, extra, minor, subordinate) |
| assigned |
| consistent(adjective, cool, friendly, agreeable, down) |
| cool(adjective, friendly, agreeable, down, responsive) |
| delegate |
| dependent(inferior, last, minor, subordinate, final) |
| imitation(extra, auxiliary, supernumerary) |
| inferior(adjective, minor, subordinate) |
| lower(adjective, inferior, minor, subordinate) |
| mock(extra, auxiliary, supernumerary) |
| provisional(extra, auxiliary, supernumerary) |
| replacement(noun, extra, auxiliary, supernumerary) |
| reserve(inferior, extra, minor, subordinate, auxiliary) |
| stopgap(extra, auxiliary, supernumerary) |
| subordinate(adjective, inferior, minor) |
| temporary(extra, auxiliary, supernumerary) |