cold
halfhearted
lukewarm
tepid
apathetic
backward
balking
balky
blase
cool
desireless
dilatory
grudging
inappetent
indifferent
lackadaisical
laggard
languid
listless
loath
loveless
nirvanic
passionless
perfunctory
reluctant
renitent
restive
slow
slow to
un-come-at-able
unambitious
unapproachable
unaspiring
unattainable
unattracted
undesirous
uneager
unexcited
ungetatable
unimpressed
uninterested
unobtainable
unreachable
unresponsive
unzealous
ambivalent
anti-buddhist
debt-free
deducible
depth-of-field
dryest
fuel-rich
half-absent
hypercritical
noncommittal
over-critical
slobbering
top-dollar
uncomplimentary
unimpressive
unladylike
unmuzzled
unsympathizing
anaplastic
bombastic
desmoplastic
drastic
dynastic
ecclesiastic
elastic
enthusiastic
fantastic
gymnastic
iconoclastic
inelastic
interscholastic
monastic
onomastic
plastic
sarcastic
scholastic
stochastic
thermoplastic