Amoral (12)
I believe the answer is:
unscrupulous
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">amoral</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for unscrupulous that I've seen before include "Unprincipled" , "Devoid of moral principles" , "Unethical" , "Without principles" , "Ruthless" .)