What is another word for Adventitious in english

The list of words which can be used for Adventitious while creating sentence in english language. accidental unintended, incidental, unplanned, inadvertent, unforeseen casual occasional, spontaneous, offhand, accidental, adventitious extrinsic acquired, alien, exotic, exterior, external, extraneous foreign different, unfamiliar, alien, external, overseas, offshore fortuitous unforeseen, random, odd, fortunate, arbitrary, casual nonessential 
Usage of Adventitious in sentences
Hindi to English Dictionary
English to Hindi Dictionary