dichotically

/ˌdaɪkəˈtædɪkli/
adverb
  1. In a way that involves or relates to a division into two mutually exclusive or contradictory groups or parts.
    • Her thinking was dichotically split between logic and emotion.
    • The two political parties are dichotically opposed on the issue of healthcare.
    • The novel presents the characters dichotically as either heroes or villains.
Synonyms