... 反対に => on the contrary N3
Compare
決して~ない => never; by no means ~ N3
[決「けっ」]して~ない => Won’t, isn’t N3
Will, Decision, Doing
に対して => towards; against; regarding; in contrast with ~​ N3
のに対して => towards; against; regarding; in contrast with ~ N2
…と (は) はんたい (反対)に => opposition; resistance; antagonism; objection; dissent N3
Compare
に[対「たい」]して/に[対「たい」]しては => In response to (topic) A, in regards to A, considering A, in contrast to A N3
Reason, Result, Response
に[対「たい」]して/に[対「たい」]しては => In response to (topic) A, in regards to A, considering A, in contrast to A N2
Reason, Result, Response
に決まっている => certainly; I’m sure/certain that; it must be the case that ~ N2
に[決「き」]まっている => A is a given, A must be the case N2
Information, Report