From Wiktionary, the free dictionary
From in- + surmountable .
insurmountable (comparative more insurmountable , superlative most insurmountable )
Incapable of being passed over, surmounted , or overcome ; insuperable
Synonym: ( archaic and rare ) unsurmountable
Antonym: surmountable
Getting everybody to agree proved to be an insurmountable difficulty.
2023 January 24, Justin McCurry, “Japan PM’s solution to dire birthrate has already been rejected by young”, in The Guardian [1] :Overcoming Japan’s demographic crisis has proved insurmountable for occupants of the Kantei – the prime minister’s office – long before Kishida moved in last autumn.
incapable of being passed over
Belarusian: неадо́льны ( njeadólʹny ) , непераадо́льны ( njepjeraadólʹny )
Bulgarian: непреодоли́м (bg) ( nepreodolím )
Catalan: insuperable
Chinese:
Mandarin: 無法 克服 的/ 无法 克服 的 ( wúfǎ kèfú de )
Czech: nepřekonatelný (cs)
Dutch: onoverkomelijk (nl)
Finnish: ylipääsemätön , ylitsepääsemätön (fi)
French: insurmontable (fr) , infranchissable (fr) , impassable (fr)
German: unüberwindlich (de) , unüberwindbar (de)
Greek: ανυπέρβλητος (el) ( anypérvlitos ) , αξεπέραστος (el) ( axepérastos )
Hungarian: leküzdhetetlen (hu) , legyőzhetetlen (hu) , áthághatatlan (hu) , áthidalhatatlan (hu)
Irish: dochloíte , dosháraithe
Latin: inēluctābilis , insuperābilis
Norwegian:
Bokmål: uoverstigelig
Nynorsk: uoverstigeleg
Polish: nieprzezwyciężony , nie do pokonania
Portuguese: insuperável , inexorável (pt)
Romanian: insurmontabil (ro)
Russian: непреодоли́мый (ru) ( nepreodolímyj ) , неодоли́мый (ru) ( neodolímyj )
Slovene: nepremostljiv , nepremagljiv (sl)
Spanish: insalvable , insuperable , infranqueable (es)
Swedish: oöverstiglig (sv)
Turkish: aşılamaz
Ukrainian: неперебо́рний ( neperebórnyj ) , непобо́рний ( nepobórnyj ) , непобори́мий ( nepoborýmyj ) , незбори́мий ( nezborýmyj ) , незбо́рний ( nezbórnyj ) , нездола́нний ( nezdolánnyj ) , неперемо́жний ( neperemóžnyj )