dissociable
unassociable
nonassociable
unwedded
inaccordant
incongruous
disconnect
abhorrent
undistinguished
subtle
on the nose
neither fish nor fowl
simpleminded
tenebrose
characterless
nondescript
spurious
heavy-handed
uncongruent
ill-matched
unrelatable
nonresemblance
nonrelatable
indistinguishable
disingenuous
incoherent
oracular
noncommonable
uncommonable
confutability
undifferentiated
nondifferentiated
irreconcilable
nothing to write home about
indiscernibility
ill-assorted
nondifferentiable
undifferentiable
uncharacteristic
out of step
disingenuine
invisible
inconspicuous
unexemplifiable
squally
turbid
non-notable
uncommon
pseudoimpartial
disreputable