unappreciative
unpleasant
disagreeable
ingrate
ingrateful
thankless
unacceptable
unpleasing
unthankful
cowardly
deceitful
disobedient
faithless
greedy
heartless
impertinent
insolent
jealous
malicious
obstinate
perverse
rebellious
selfish
spiteful
unjust
unkind
worthless
fateful
grateful
hateful
thankful