adversary
adversative
adverse
adversive
alien
antagonistic
anti
antipathetic
antithetic
antonymous
at cross-purposes
balancing
breakaway
clashing
compensating
competitive
con
conflicting
confronting
contradicting
contradictory
contradistinct
contrapositive
contrarious
contrary
contrasted
converse
counter
counteractant
counteracting
counteractive
counterbalancing
counterpoised
countervailing
counterworking
cranky
cross
crotchety
dead against
disaccordant
discordant
discrepant
dissentient
dissident
enemy
eyeball to eyeball
fractious
hostile
inconsistent
inimical
7-bit
8-digit
continue
convolutional
favourof
feedback
multi-level
noncompliant
phase-shift
references/suggested
schizoaffective
seven-bit
stormful