Silly, pointless (7)
I believe the answer is:
fatuous
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">silly</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >'<span class="explanation-format__original">pointless</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for fatuous that I've seen before include "Foolish or silly" , "Absurd" , "Witless" , "Absurdly stupid" , "Foolish, senseless." .)