Sombre (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sombre</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for solemn that I've seen before include "Grave and serious about melons" , "Portentous" , "'Sedate, grave (6)'" , "Melons (anag.)" , "gloomy" .)
(Other definitions for morose that I've seen before include "Melancholy" , "Sullen or glum." , "Lugubrious" , "Down in the dumps" , "Peevish and gloomy" .)
(Other definitions for dismal that I've seen before include "dark" , "Dull and dreary" , "Sad, gloomy" , "down in the dumps" , "Wretched" .)