What's the difference between boastless and ostentation?

Boastless

Definition:

Example Sentences:

Definition:

(n.) The act of ostentating or of making an ambitious display; unnecessary show; pretentious parade; -- usually in a detractive sense.
(n.) A show or spectacle.

Example Sentences:

(1) We are supposed to slaver enviously at this ostentation; if we don’t, we condemn ourselves as losers.
(2) The company that helped the couple design it said: “They wanted not ostentation but ‘a spirit of home’.” While the yacht was designed primarily for relaxed cruising, Staley has sailed her across the Atlantic to complete one of his “bucket list” life goals.
(3) Awopbopaloobop transferred the underworld grit, diamond-studded teeth and overflowing dresses in Cohn’s imagination to the glamour, the ostentation, the ruthlessness and grubbiness of the pop business.
(4) Yet it would be wrong to overlook the damage done to the Japanese psyche in the immediate aftermath of the bursting of the bubble in the early 1990s, a decade of excess and ostentation sustained by a shared illusion that the economy would remain for ever on an upward trajectory.
(5) Many of those present had travelled for days by bus or plane to see a pope that they admire for his spirituality, lack of ostentation and strong emphasis on the poor.
(6) According to Billboard , Daleste was involved in São Paulo's ostentation funk scene, where rappers trade gangster bars over heavily percussive beats.
(7) His other great passion is good taste – a quality he credits for distinguishing his family from the tacky ostentation of most Russian oligarchs, who rather embarrass Lebedev.