A superficial appearance or show meant to deceive; a pretense or sham that hides the true state of affairs.
彼の親切は本当ではなく、ただの見せ掛けだった。
His kindness wasn't real; it was just a show.
見せ掛けの友情に気をつけなさい。
Be careful of friendships that are only for show.
その会社は見せ掛けだけの取引をしていたと報じられた。
It was reported that the company engaged in sham transactions.