Ostentatious
Part of speech: adjective
Definition: of ostentation. intended to attract notice. of tawdry display; kitsch.
Example sentence: Do your damnedest in an ostentatious manner all the time.
Pretentious
Part of speech: adjective
Definition: Marked by an unwarranted claim to importance or distinctionOstentatious; intended to impress others
Example sentence: Without sounding too pretentious, I feel my job is almost like becoming a monk or a nun - it's a calling.