Atheistic
I believe the answer is:
godless
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">atheistic</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for godless that I've seen before include "Of no faith" , "Wicked - impious" , "Profane, wicked" , "Heathen" , "Irreverent - atheistic" .)