Discretionary (9)
I believe the answer is:
arbitrary
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">discretionary</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for arbitrary that I've seen before include "Capricious" , "Based on random choice" , "lacking principles" , "Based on whims or irrelevancies" .)