も同然 => just like; same as ~ N2
と同時に => at the same time as; while; simultaneously ~ N2
とは[裏腹「うらはら」] => Contrary to A, opposite of A, ... N1
Contrast/Surprise
~もどうぜんだ(~も同然だ)      => just like; same as ~ N1
も[同然「どうぜん」]だ => The same as saying A, as good as A N2
Adjectival, Descriptions