Synonyms of supererogatory

2 Syllables
lavish, sparer, surplus, sparest, needless, excess, extra, spare
3 Syllables
redundant, unasked, extreme, leftover, unneeded, superfluent, superfluous, profuse, useless, pleonastic, remaining, abounding, unwanted, gratuitous, uncurbed, overmuch
4 Syllables
expendable, excessive, dispensable, residuary, unrequired, inessential, nonessential, uncalled-for, exorbitant, undemanded, extravagant, overflowing, unrequested, untempered
5 Syllables
overindulgent, unmeasurable, unnecessary, superabundant, inordinate
6 Syllables
supernumerary