1. plural of opponency; instances or states of being an opponent or opposing force; opposition or antagonism.
Usage: formal; rare; chiefly used in academic or technical contexts

Examples

• The opponencies between the two political factions grew more intense during the election season.
• In neuroscience, color opponencies describe how the visual system processes complementary colors.
• The team faced multiple opponencies from rival organizations seeking the same contract.
• Historical opponencies between neighboring nations shaped the region's political landscape.
• The researcher studied the opponencies inherent in competing economic theories.