like water off a duck's back
inefficaciously
innoxious
unacute
nonacute
nonadverse
uneffectuated
nondegradative
unaggravating
unaggravated
zipless
nondeteriorative
nondamaging
unalleviatedly
nonresidual
nonmutating
unafflicted
ziplessness
nonimmanent
unabrased
nonvasoreactive
nonsevere
nonimpactive
unharmful
undegrading
unsevere
nonharmful
nonaffected
unexacerbated
unexcogitated
ineffectively
nonexacerbating
effectlessly
fairly
scathelessly
unexorbitant
undetrimental
nonemetic
noncontagious
nondetrimental
nonhypoxic
nonmetastatic
unfumed
unimpactful
unemaciated
untemporary
uninseminated
unejected
nontemporary
nonretroactive