prolix
uninteresting
alliterating
alliterative
arid
assonant
automatic
banal
barren
belabored
betwixt and between
blah
blank
bloodless
boresome
boring
broken-record
bromidic
changeless
chanting
characterless
chiming
cliche-ridden
cold
colorless
dead
dingdong
dismal
drab
dragging
draggy
drearisome
dreary
drudging
dry
dryasdust
dull
dusty
effete
elephantine
empty
endless
etiolated
everlasting
exhausting
fade
fair
fair to middling
fairish
fatiguing
TED
tedium
bore
fruitless
laborious
lengthy
monotonous
painful
tiresome
troublesome
uncomfortable
useless