obtuse; dull
Having a dull or blunt and soft point
To render obtuse; to dull; to blunt.
Showy; ostentatious.
Overly proud of oneself, especially concerning appearance; having a high opinion of one's own accomplishments with slight reason.
Effecting no purpose; pointless, futile.
Having no real substance, value, or importance; empty; void; worthless; unsatisfying.