incompatible
acrid
adversary
adversative
adverse
adversive
ajar
alien
antagonistic
anti
antipathetic
antithetic
antonymous
at cross-purposes
at loggerheads
at odds
at variance
at war
balancing
belligerent
bitter
breakaway
caustic
colliding
compensating
competitive
con
conflicting
confronting
confused
contradicting
contradictory
contradistinct
contrapositive
contrarious
contrary
contrasted
converse
counter
counteractant
counteracting
counteractive
counterbalancing
counterpoised
countervailing
counterworking
cranky
cross
crotchety
dead against
despiteful
bashing
caching
cashing
crashing
dashing
flashing
gnashing
hashing
lashing
rehashing
slashing
smashing
splashing
stashing
thrashing
trashing