concomitant
con-com-i-tant
adjective
Existing or occurring together with something else, often as a consequence.
"Stress is a common concomitant problem with illness."
noun
A thing that naturally accompanies or occurs with something else.
"Pain is a frequent concomitant of the disease."
Thesaurus
Synonyms: co-occurrence, accompaniment, attendant, subsequent, ensuant, collateral, sequent, accompanying, incidental, resultant, consequent