Definitions
1.adjectiveFormed, 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.
2.adjectivePertaining 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.)
3.adjectiveResulting from or pertaining to personal mindsets or experience, arising from perceptive mental conditions within the brain and not necessarily or directly from external stimuli.
4.adjectiveLacking in reality or substance.
5.adjectiveAs used by Carl Jung, the innate worldview orientation of the introverted personality types.
6.adjectiveExperienced by a person mentally and not directly verifiable by others.
7.adjective(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.)