Dismal, gloomy (6)
I believe the answer is:
dreary
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">dismal</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that dismal can be written as dreary)</span><br/ ><br/ >'<span class="explanation-format__original">gloomy</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that gloomy can be written as dreary)</span><br/ ><br/ ></span>
(Other definitions for dreary that I've seen before include "Dark" , "Drab and depressing" , "Banal" , "Monotonous" , "Dismal, funereal" .)