based on facts, or making a decision that is based on facts rather than on your feelings or beliefs [≠ subjective]
objective assessment/measurement/description etc
It's hard to give an objective opinion about your own children.
Scientists need to be objective when doing research.
the importance of a completely objective, independent press
existing outside the mind as something real, not only as an idea:
The world has an objective reality.
—objectivity noun [uncountable]