contrariwise
Contrariwise is an English adverb meaning on the contrary or in a contrary manner, used to express opposition or a counterpoint to a preceding statement. The form is built from the root contrar- with the suffix -wise and is related to the adjective contrarian or opposite. It derives from Middle English and is now chiefly found in archaic, literary, or humorous contexts.
In usage, contrariwise tends to appear in older or stylistically playful prose rather than in contemporary
Although rare today, the word is still encountered in quotation contexts to evoke an antique or whimsical