subsidiary (n.)
- accessory
- accident
- accidental
- addendum
- addition
- adjunct
- adjuvant
- appendage
- appurtenance
- assistant
- auxiliary
- collateral
- contingency
- contingent
- dower
- dowry
- extra
- fostering
- happenstance
- helping
- incidental
- inessential
- ministrant
- minor
- nonessential
- other
- pensionary
- secondary
- serving
- stipendiary
- supplement
- tributary
subsidiary (adj.)
- accessory
- accidental
- additional
- adjunct
- adjuvant
- adscititious
- adventitious
- ancillary
- appurtenant
- assistant
- auxiliary
- casual
- circumstantial
- collateral
- contingent
- contributory
- dotal
- dowered
- endowed
- extra
- fortuitous
- incidental
- inessential
- instrumental
- ministerial
- ministrant
- minor
- nonessential
- nurtural
- other
- secondary
- serving
- stipendiary
- subservient
- superfluous
- supplemental
- supplementary
- tributary
- unessential
