unreflecting

adj

1. Not giving reflection or thought to one's actions, words, conclusions, etc.; (of an action, statement, conclusion, etc.) done without reflection or thought. (of a person)

   “Now what Discourse can be more suited to the Principles of these young Cubs of the Leviathan, than not to punish credulous and unreflecting People for being cheated and abused?”

   “When culprit reason truant plays, And wanders forth in fancy’s maze, Thy random shafts may please a-while, And raise the unreflecting smile, But soon as absent sense returns, Our cheek with indignation burns,”

   “If there are people so unreflecting or so cruel, as to make a jest of me, what is left for me to do but to make a jest of myself, them, and every thing?”

   “[…] there he was gallantly, thoughtlessly alive, to all appearance indestructible solely by the virtue of his few years and of his unreflecting audacity.”

   “How ungenerously in later life we disclaim the virtuous moods of our youth, living in retrospect long, summer days of unreflecting dissipation, Dresden figures of pastoral gaiety!”

2. That does not reflect light or sound.

   “[…] a mirror may have picturesque beauty; but it is only from it's reflections. In an unreflecting state, it is insipid.”

   “A star-ship—as the mirrors told— Put forth its great and lonely light To the unreflecting Ocean, Night.”

   “The steel hat on the coffin lay blackened and unreflecting under the winter sun […]”