noun: (singular only) The state of being subjective.
noun: A subjective thought or idea.
subjective:
adjective: Formed, as in opinions, based upon a person's feelings or intuition, not upon observation or reasoning; coming more from within the observer than from observations of the external environment.
adjective: Pertaining to subjects as opposed to objects (A subject is one who perceives or is aware; an object is the thing perceived or the thing that the subject is aware of.)
adjective: Resulting from or pertaining to personal mindsets or experience, arising from perceptive mental conditions within the brain and not necessarily or directly from external stimuli.
adjective: Lacking in reality or substance.
adjective: As used by Carl Jung, the innate worldview orientation of the introverted personality types.
adjective: (philosophy, psychology) Experienced by a person mentally and not directly verifiable by others.
adjective: (linguistics, grammar) Describing conjugation of a verb that indicates only the subject (agent), not indicating the object (patient) of the action. (In linguistic descriptions of Tundra Nenets, among others.)