Extrinsic (adjective)

1. Coming from or located outside; not inherent or essential.
2. Not forming an essential part of a thing or person.
3. Having no necessary connection or relation to a subject or course of events.

Origin:

Late 17th century: from late latin extrinsicus "outside", from extrinsecus "from outside", from latin extra "outside" + secus "beside".

Examples:

1. The success of the project was due to extrinsic factors such as good weather and timely support.
2. The ornament was an extrinsic addition to the building and could be removed without affecting its structure.
3. The money was an extrinsic reward for her hard work, not the main reason she took the job.
4. The motivation for his actions was extrinsic, driven by external factors rather than his own values.
5. The commentary was extrinsic to the main topic of the speech and added little value.