CONVERSELY

con ‧ verse ‧ ly AC /kənˈvɜːsli, ˈkɒnvɜːsli $ kənˈvɜːrsli, ˈkɑːnvɜːrsli/ BrE AmE adverb

used when one situation is the opposite of another:

American consumers prefer white eggs; conversely, British buyers like brown eggs.