supplementary Synonyms - page 2
attendant
assistive
ascititious
appurtenant
appended
another
annotative
adventitious
adscititious
adjuvant
adjectitious
additive
addition
accompanying
accidental
accessorial
accessional
augmenting
bonus
collateral
increased
fresh
farther
extraneous
extended
expository
expletory
explanatory
excess
enhancing
elucidatory
declarative
contributory
completement
completing
complemental
complement
accessary