subjectivity
US /ˌsʌb.dʒekˈtɪv.ə.t̬i/
UK /ˌsʌb.dʒekˈtɪv.ə.t̬i/

1.
the quality of being based on or influenced by personal feelings, tastes, or opinions.
:
•
The judge emphasized the subjectivity of the witness's testimony.
•
Art appreciation often involves a high degree of subjectivity.