adventitious

associated by chance and not an integral part; "poetry is something to which words are the accidental, not by any means the essential form"- Frederick W. Robertson; "they had to decide whether his misconduct was adventitious or the result of a flaw i

बच्चों एवं वृध्दों में आकस्मिक मृत्यु की दर को कम से कम एक तिहाई तक कम करना.

Due to the adventitions visit of the inspection team,the entire staff was taken aback.