endurance(the measure of a person's stamina or persistence) noun [UK: ɪn.ˈdjʊə.rəns] [US: ˈen.də.rəns]I reached my endurance limit. = Sono giunto al limite della sopportazione.
forbearance(restraint under provocation) noun [UK: fɔː.ˈbeə.rəns] [US: fɔːr.ˈbe.rəns]
al limite della sopportazionepreposition
at the end of one's tether(at the limit of one’s patience) preposition [UK: ət ðə end əv wʌnz ˈte.ðə(r)] [US: ət ðə ˈend əv wʌnz ˈte.ðər]