1. 
[syn: depressing, cheerless, uncheerful]
The Collaborative International Dictionary of English v.0.48:
Uncheerful \Uncheerful\
   See cheerful.
WordNet (r) 3.0 (2006):
uncheerful
    adj 1: causing sad feelings of gloom and inadequacy; "the
           economic outlook is depressing"; "something cheerless
           about the room"; "a moody and uncheerful person"; "an
           uncheerful place" [syn: depressing, cheerless,
           uncheerful] [ant: cheerful]
Moby Thesaurus II by Grady Ward, 1.0:
33 Moby Thesaurus words for "uncheerful":
   Cassandra-like, Cassandran, Cassandrian, cheerless, cynical,
   defeatist, discontented, dismal, downbeat, gloomy, grim, humorless,
   in bad humor, infestive, joyless, mirthless, miserable, negative,
   negativistic, nihilistic, out of humor, out of sorts, pessimist,
   pessimistic, pleasureless, sorry, sorryish, uncheery, unhappy,
   unjoyful, unmirthful, unsmiling, wretched