名词

1. 完全相反；截然对立
If there is apolarity between two people or things, they are completely different from each other in some way.

1. a relation between two opposite attributes or tendencies

e.g. he viewed it as a balanced polarity between good and evil

Synonym: mutual opposition

2. having an indicated pole (as the distinction between positive and negative electric charges)

e.g. he got the polarity of the battery reversed
charges of opposite sign

Synonym: sign