unscented

adj

1. (not-comparable)Unperfumed; having no scent.
2. (not-comparable)That has not been scented (detected by smell); undetected.

   “Tomaso's real dealings, the ones from which he derived his considerable revenues (unscented by the feds), were concluded in hushed tones...”

   “The mindset of the hunter is split between focus on gathering visual or sound information regarding the elk and remaining unseen, unscented, and unheard, thus avoiding detection by the elk.”