Modifies a noun

• egomaniac: Also a chance to spot this week's vainglorious egomaniac who can talk a great script but fortunately for us can't write one.

• thought: And at the very moment of that vainglorious thought, a qualm came over me, a horrid nausea and the most deadly shuddering.

• man: Tony Blair, perfectly illustrates this, a prancing, posing, vainglorious man.