Use 'extrinsic' to highlight that something is not naturally part of an object, person, or situation. The extrinsic decorations were added to the ancient statue recently.
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Added Quality
'Extrinsic' can imply qualities that have been added to enhance or change something original. The extrinsic flavors in the drink come from artificial sweeteners.
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Outside Influence
'Extrinsic' often suggests that an influence comes from the outside rather than from within. Extrinsic pressures from his parents shaped his career choice.