DISMAL is validvalid

cheerless and depressing [adj DISMALER, DISMALEST] : DISMALLY [adv], DISMALNESS [n] / a track of swampy land [n DISMALS]

18,900 of 196,601 in NWL2023·also valid in CSW24

sad, gloomy [adj DISMALER or DISMALLER, DISMALEST or DISMALLEST, DISMALLY] / a swamp [n -S]