IPA: /ʌnˈbrɪdʒəbl/
KK: /ʌnˈbrɪdʒəbl/
Something that cannot be crossed or overcome, often referring to gaps or differences that are too great to bridge.
The two sides had unbridgeable differences that made it impossible to reach an agreement.
Unbridgeable → It is formed from "un-" (meaning not) and "bridge" (from Old English "brycg", meaning a structure built to span a physical obstacle) and "-able" (meaning capable of). The word "unbridgeable" means not capable of being bridged or crossed over.
Think of something that cannot be crossed ('un-') because there is no 'bridge' to connect the two sides.