yet; 

still;

for all of that;

notwithstanding;

rather;

neither ... nor;

although;

though;

but;

however;

something is just the other way around;

conversely;

unlike;

opposed to;

as opposed to;

in contrast (to);

by way of;

on the contrary;

different from this;as opposed to this;

nevertheless;

contrary to;

whereas;

while;

but on the other hand.