1. Antonyms for Contrariety include identicalness, sameness, agreement, uniformity, alikeness, parity, identity, equality, resemblance and oneness

2. Antonyms for Alterity include similarity, alikeness, analogousness, analogy, community, correspondence, likeness, resemblance, sameness and accord

3. Synonyms for Analogy include similarity, correspondence, resemblance, likeness, similitude, equivalence, affinity, correlation, parallelism and alikeness