extrinsic

1. Not forming an essential part of a thing or arising or originating from the outside (synset 301351889)
   "extrinsic evidence"; "an extrinsic feature of the new building"; "that style is something extrinsic to the subject"; "looking for extrinsic aid"
   also: inessential, unessential - not basic or fundamental
   similar to:

   • adventitious - associated by chance and not an integral part
   • adscititious - added or derived from something outside; not inherent
   • alien, foreign - not contained in or deriving from the essential nature of something
   • external, extraneous, outside - coming from the outside
   • extraneous - not essential

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