an unbridgeable gap or difference between two people or groups or their opinions is one that cannot be closed or made less wide （分歧、意见等）无法弥合的；无法沟通的 The division between the two great branches of the Christian Church, Protestantism and Roman Catholicism, no longer seems unbridgeable. 基督教教会的两个大分支，新教和罗马天主教之间的分歧似乎不再是不可逾越的。
Oxford Collocations DictionaryUnbridgeable is used with these nouns:- chasm
- gap
- gulf
- …