di ‧ chot ‧ o ‧ my /daɪˈkɒtəmi $ -ˈkɑː-/ BrE AmE noun ( plural dichotomies ) [countable] formal
[ Date: 1500-1600 ; Language: Greek ; Origin: dichotomia , from dichotomos 'cut in two' ]
the difference between two things or ideas that are completely opposite
dichotomy between
a dichotomy between his public and private lives