Narcissus
braggart
careerist
egocentric
egoist
fortune hunter
hog
individualist
know-it-all
lone wolf
loner
monopolist
narcissist
narcist
no modest violet
road hog
self-advancer
self-pleaser
self-seeker
self-server
smart aleck
swellhead
temporizer
timepleaser
timeserver
tufthunter
disagreeable person
unpleasant person
blowhard
boaster
bragger
egomaniac
exhibitionist
know-all
line-shooter
megalomaniac
miles gloriosus
popinjay
show-off
vaunter
egotism
egotistical
asshole
booby
cad
coxcombry
despot
dogmatism
effrontery
egoism
hypocrite
liar
materialism
poltroon
prig
romancer
scoundrel
self-assurance
self-importance
self-satisfaction
sonofabitch
sophist
windbag