WordNet sense 1 (descended from a common ancestor but through different lines):

collateral, indirect

WordNet sense 2 (moving from east to west on the celestial sphere; or--for planets--around the sun in a direction opposite to that of the Earth):

retrograde

WordNet sense 3 (opposite in nature or effect or relation to another quantity ):

inverse

WordNet sense 4 ((of a current) reversing direction):

alternating