Personality: Negative aspect (saberingles.com.ar)

absent-minded	distraído, despistado
aggressive	agresivo
annoying	molesto
arrogant	arrogante, prepotente
bad-tempered	malhumorado
boastful	fanfarrón
bossy	mandón
cheeky	atrevido
clumsy	torpe
deceitful	falso
dishonest	deshonesto
disrespectful	irrespetuoso
dominant	dominante
dull = boring	aburrido
eccentric	excéntrico
envious	envidioso
forgetful	olvidadizo
frivolous	frívolo
fussy	quisquilloso
hypocritical	hipócrita
impatient	impaciente
impulsive	impulsivo
indifferent	indiferente
insecure	inseguro
insensitive	insensible
insolent	insolente
introverted	introvertido
irascible	irascible
irresponsible	irresponsable
jealous	celoso
lazy	haragán
lonely	solitario
materialistic	materialista
mean = cruel	cruel
mean = stingy,  tight-fisted	mezquino
modest	modesto
moody	malhumorado
nosey	metido
obsessed	obsesionado
pessimistic	pesimista
proud = arrogant	orgulloso
quarrelsome	pendenciero
querulous	quejumbroso
resentful	rencoroso
rude = impolite	descortés
selfish	egoísta
self-seeking	interesado
shy	tímido
spiteful	rencoroso
strict	estricto
stubborn = obstinate	obstinado
talkative	charlatán
unpredictable	impredecible
unreliable = untrustworthy	desconfiable
unsympathetic	apático
vain = conceited	vanidoso
weak	débil