chill
chilly
cold
cool
disaccordant
disagreeable
frosty
icy
ill
ill-natured
ill-tempered
incompatible
inhospitable
inimical
morose
repulsive
strained
tense
unaffectionate
unamicable
unbenign
unbenignant
uncompassionate
uncompassioned
uncordial
unfriendly
ungenial
ungracious
unharmonious
unkind
unkindly
unloving
unsociable
unsympathetic
unsympathizing
bad-tempered
boorish
captious
choleric
churlish
crabbed
crossgrained
discourteous
distrustful
froward
gruff
ill-conditioned
irascible
misanthropic
quarrelsome
splenetic
surly
uncommunicative