A person who is indifferent or apathetic.
Indicating or reflecting a lack of concern or care.
Ambivalent; unconcerned; uninterested, apathetic.
Having no preference.
Mediocre (usually used negatively in modern usage).
Not making a difference; without significance or importance.
Being in the state of neutral equilibrium.
Involving reflection.
Reciprocal.
That reveals or shows; revealing; indicative of.
That reflects, or redirects back to the source.
Pondering, especially thinking back on the past.