tasty
unpleasant
acerb
acerbate
acerbic
acid
acidic
acidulent
acidulous
acrimonious
acute
amaroidal
antagonistic
antipathetic
asperous
astringent
austere
belligerent
biting
bitter
bitter as gall
caustic
clashing
cloying
coarse
colliding
conflicting
corroding
corrosive
cutting
despiteful
double-edged
edged
escharotic
featheredged
fierce
fine
full of hate
hard
harsh
hateful
hostile
incisive
irritating
keen
keen-edged
knifelike
malevolent
fetid
fishy
intoxicating
musky
musty
nauseous
noxious
oily
pungent
rancid
resinous
salty
smoky
sour
sulfurous