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