Answer: drearier

AnswerCrossword Clue
DREARIERMore dispiriting
DREARIERLess upbeat
DREARIERMore depressing
DREARIERMore downbeat
DREARIERLess cheerful
DREARIERMore dismal
DREARIERMore boring
DREARIERMore like Poe's midnight
DREARIERMore cheerless
DREARIERMore gloomy
drearierDREARY, dismal (gloomy (dismally dark))
drearierDull, bleak, and lifeless; depressing