turbid

turbid [ˈtɜːbɪd] a.

1.) Of liquid: Thick or opaque with suspended matter; not clear; cloudy, muddy. Of air, smoke, clouds, etc.: Thick, dense; dark.
2.) fig. Characterized by or producing confusion or obscurity of thought, feeling, etc.; mentally confused, perplexed, muddled; disturbed, troubled (Oxford English Dictionary 2nd Edition).

Etymology: adaptation of Latin turbidus, full of confusion or disorder; troubled, muddy; perplexed, violent, etc.; from turba, crowd, disturbance.

"Once more you near me wavering apparitions,
That early showed before the turbid gaze.
Will I now seek to grant you definition,
My heart essay again the former daze?"
(Faust by Johann Wolfgang von Goethe, Walter Arndt (trans.), 1976).

(Le damnation de Faust, Ignace Henri Jean Fantin-Latour, 1888)