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affected; smug; pompous; conceited; snobby; pretentious
彼のきざな話し方が周囲の反感を買っている。
His affected way of speaking rubs those around him the wrong way.
きざな台詞を言ったつもりが笑われてしまった。
I tried to say something suave but got laughed at instead.
あのきざな態度さえなければ彼はいい人なのに。
He would be a nice person if not for that smug attitude.