貌合心离

貌合心離
màohéxīnlí
the appearance of unity, but divided at heart (idiom); seeming harmony belies underlying disagreement

CEDICT

表面看起来彼此关係很密切，实际上心思不一样。汉．黄石公《素书．遵义第五》：「貌合心离者孤，亲谗远忠者亡。」也作「貌合情离」、「貌合神离」。

重編國語辭典

Entry Composition

1 貌 mào (bound form) appearance; looks; outward form
2 合心 héxīn
  1. acting together
  2. to one's liking
3 离 lí
  1. to leave
  2. to part from
  3. to be away from
  4. (in giving distances) from
  5. without (sth)
  6. independent of
  7. one of the Eight Trigrams 八卦 bāguà, symbolizing fire
  8. ☲

Related entries

貌合神离 màohéshénlí the appearance of unity, but divided at heart (idiom); seeming harmony belies underlying disagreement