1) Bluer 2) Deeper blue 3) Further down in the dumps 4) More blue 5) More bummed out 6) More crushed 7) More doleful 8) More down 9) More downcast 10) More melancholic 11) Not as impressive 12) Not so happy 13) Not so sunny 14) Relatively sorry Found on https://www.crosswordclues.com/clue/sadder