Sentence:  Upon a little serious examination, the off-hand disposal of an important question of policy, by the declaration that Americans can do anything, proves to be only a silly piece of <WSD>bombast</WSD>, and, upon a little reflection, we find that our hands are quite full at home of problems, by the solution of which the peace and happiness of the American people could be greatly increased. 
Meaning of the word marked with <WSD> tags:  High-sounding words; language above the dignity of the occasion; a pompous or ostentatious manner of writing or speaking.