brackish
distasteful
unsavory
unsavoury
afflictive
bitter
disagreeable
dislikable
displeasing
flat
flavorless
foul-tasting
galling
grievous
ill-flavored
inedible
insipid
loathsome
matchless
nasty
nauseous
off
offensive
only
painful
peerless
rancid
repugnant
savorless
sickening
sour
tasteless
thankless
thin
turned
ugly
unalluring
unappealing
unappetizing
unattractive
undelectable
undelicious
undesirable
unengaging
unenjoyable
unequaled
uninviting
unique
unlikable
unmatched
Embarrass
detrimental
disadvantageous
disappoint
fishy
inappropriate
inconvenient
indigestible
innutritious
palatable
uncomplimentary
unfavourable
unpopular
unsatisfactory
unwelcome
unwise