ill-natured
abnormal
anomalous
antagonistic
antipathetic
arbitrary
bearish
breakaway
cankered
capricious
clashing
conflicting
contradicting
contradictory
counteractant
counteracting
counteractive
countervailing
counterworking
crank
crankish
cranky
cross-grained
deviant
deviative
different
dissident
divergent
dotty
eccentric
erratic
exceptional
fanciful
fantasied
fantastic
fey
flaky
freakish
funny
harebrained
hostile
humorsome
idiocratic
idiosyncratic
inimical
irregular
kinky
kooky
maggoty
acerbic
cigar-shaped
crossgrained
dust storm
gibbous
healthy-looking
hot-headed
hot-tempered
inconstant
irascible
irresolute
mercurial
opinionated
overfond
quick-tempered
self-willed
stiff-necked
strong-headed
thin-skinned
unamiable
untractable
vagarious
victorian-style
wrongheaded