senile

高龄的；老衰的；高龄所致的英释中释adjIf old people become senile, they become confused, can no longer remember things, and are unable to take care of themselves

1 senile dementia,[医]老年性痴呆

2 senile plaque,老年斑；老人斑

1 a senile old man.一个年老糊涂的老人