adversary
adversative
adverse
alien
antagonistic
anti
antipathetic
antithetic
assorted
at cross-purposes
at loggerheads
at odds
at variance
at war
chill
chilly
clashing
cold
colliding
competitive
con
conflicting
contradictory
contrary
contrasted
contrasting
cool
counter
cranky
cross
departing
deviating
deviative
different
differentiated
differing
disagreeable
disagreeing
discordant
discrepant
discrete
discriminated
disharmonious
disjoined
disparate
disproportionate
dissentient
dissident
dissimilar
dissonant