contradistinction (n.)

• antagonism
• antipathy
• antithesis
• collision
• con
• conflict
• confrontation
• contradiction
• contraindication
• contrariety
• contrast
• demarcation
• differentiation
• disagreement
• discrepancy
• distinction
• distinctiveness
• division
• hairsplitting
• hostility
• inconsistency
• nuance
• oppositeness
• opposition
• perversity
• polarity
• repugnance
• segregation
• separation
• showdown