| subject(collateral, subalternate, low-set) |
| subnormal(adjective, lower, subject, collateral, subsidiary) |
| subordinate(adjective, slight, lower, subject, collateral) |
| subservient(adjective, collateral, subsidiary, subalternate, cliquish) |
| subsidary(adjective, collateral, subsidiary, subservient, subalternate) |
| subsidiary(adjective, slight, collateral, inconsequential, subservient) |
| substract(adjective, lower, subject, collateral, subsidiary) |
| supportive(adjective, collateral, subsidiary, subservient, subalternate) |
| synchronal(adjective, collateral, subsidiary, subservient, subalternate) |
| tied to apron strings(expression, idiom, collateral, subalternate, low-set) |
| to the bottom(expression, idiom, collateral, subalternate, low-set) |
| too little too late |
| tributary(adjective, lower, collateral, subsidiary, subservient) |
| tributory(adjective, collateral, subsidiary, subservient, subalternate) |
| trifling(insignificant, unimportant, trivial, minor) |
| trivial(insignificant, unimportant, minor) |
| unconsequential |
| under(collateral, subalternate, low-set) |
| under thumb(expression, collateral, subalternate, low-set) |
| underaverage(adjective, lower, subject, collateral, subsidiary) |