mis-fortunate (adjective) ill-fated/ill-starred: doomed
Sinonime: commutual, complemental, completing, completory,
conclusive, correlative, correspondent,
corresponding, crowning,
equivalent,
fellow,
integral, integrative, interconnected, interdependent, interrelated, interrelating, matched, mated, paired,
parallel,
reciprocalAntonime: independent, unrelated