behaving in a confused or strange way, and unable to remember things, because you are old 衰老的；年老糊涂的 I think she's going senile. 我想她是衰老了。 He was looking at me as if I’d suddenly gone senile. 他看着我，好像我突然变老了。 That senile old fool! 那个老傻瓜！
Collocations The ages of lifeTopics Life stagesc2The ages of life 年龄段 Childhood/youth 童年／青年时期 - be born and raised/bred in Oxford; into a wealthy/middle-class family
- have a happy/an unhappy/a tough childhood
有幸福／不幸／艰苦的童年 - grow up in a musical family/in an orphanage/on a farm
成长于音乐之家／孤儿院／农场 - be/grow up an only child (= with no brothers or sisters)
是独生子 - reach/hit/enter/go through adolescence/puberty
进入／经历青春期 - be in your teens/early twenties/mid-twenties/late twenties
十几岁；二十出头；二十五岁左右；将近三十岁 - undergo/experience physical/psychological changes
经历生理／心理变化 - give in to/succumb to/resist peer pressure
屈服于／顶住同辈的压力 - assert your independence/individuality
维护独立／个性
Adulthood 成年 - leave school/university/home
中学／大学毕业；离家 - go out to work (at sixteen)
（16 岁）投身工作 - get/find a job/partner
找到工作／伴侣 - be/get engaged/married
订婚；结婚 - have/get a wife/husband/mortgage/steady job
有妻子／丈夫／按揭贷款／稳定的工作 - settle down and have kids/children/a family
安定下来并生儿育女 - begin/start/launch/build a career (in politics/science/the music industry)
开始（政治／科学／音乐）职业生涯 - prove (to be)/represent/mark/reach a turning point in your life/career
最终成为／代表／标志／达到某人人生／某人职业生涯的转折点 - reach/be well into/settle into middle age
进入／安度中年 - have/suffer/go through a midlife crisis
经历中年危机 - take/consider early retirement
提前退休；考虑提前退休 - approach/announce/enjoy your retirement
临近／宣布／享受退休
Old age 老年 - have/see/spend time with your grandchildren
有孙辈；与孙辈共度时光 - take up/pursue/develop a hobby
开始／追求／培养一种爱好 - get/receive/draw/collect/live on a pension
得到／提取／领取退休金；靠退休金生活 - approach/save for/die from old age
临近晚年；存钱养老；老死 - live to a ripe old age
高寿 - reach the grand old age of 102/23 (often ironic)
活到 102／23 岁高龄（常作反语） - be/become/be getting/be going senile (often ironic)
变得衰老（常作反语） - die (peacefully)/pass away in your sleep/after a brief illness
在睡梦中／患病不久（平静地）离开人世
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medical 医学 (of a medical condition 医疗状况 caused by old age 老年： 老年引起senile cataracts 老年性白内障
Word Originmid 17th cent.: from French sénile or Latin senilis, from senex ‘old man’.