concomitant
noun.
an event or situation that happens at the same time as or in connection with another
adj.
occurring with or following as a consequence
an excessive growth of bureaucracy, with attendant problems|snags incidental to the changeover in management|attendant circumstances|the period of tension and consequent need for military preparedness|the ensuant response to his appeal|the resultant savings were considerable|collateral target damage from a bombing run