Similar word to anti-thesis:
animosity, animus, antipathy, antithesis, clashing, competition, conflict, contention, contradistinction, contrariety, difference, disagreement, discord, dissension, enmity, friction, hatred, hostility, incongruity, oppugnancy, rancor, resistance, rivalry
animosity, animus, antipathy, antithesis, clashing, competition, conflict, contention, contradistinction, contrariety, difference, disagreement, discord, dissension, enmity, friction, hatred, hostility, incongruity, oppugnancy, rancor, resistance, rivalry