Explanation

You need to go all the way to “blandishments,” a word which denotes flattery, to find the clue for the first blank.

Officiousness, which is the quality of being “annoyingly, domineeringly assertive,” has close to an opposite meaning. The second blank is given away by ignorant: it indicates you are looking for a word that carries a meaning of “silly or foolish,” or fatuous. The third blank requires a word that means “contrary to” or “at odds with” — incongruous. Don’t be confused by apposite, which means “appropriate” or “fitting.”

Flattery, fatuous, incongruous.