casual

• adj. 随便的；非正式的；临时的；偶然的
• n. 便装；临时工人；待命士兵

来自词根cad, 掉落，词源同case, accident.

1. marked by blithe unconcern;

"an ability to interest casual students"

"showed a casual disregard for cold weather"

"an utterly insouciant financial policy"

"an elegantly insouciant manner"

"drove his car with nonchalant abandon"

"was polite in a teasing nonchalant manner"

2. without or seeming to be without plan or method; offhand;

"a casual remark"

"information collected by casual methods and in their spare time"

3. suited for everyday use;

"casual clothes"

"everyday clothes"

4. occurring or appearing or singled out by chance;

"their accidental meeting led to a renewal of their friendship"

"seek help from casual passers-by"

"a casual meeting"

"a chance occurrence"

5. hasty and without attention to detail; not thorough;

"a casual (or cursory) inspection failed to reveal the house's structural flaws"

"a passing glance"

"perfunctory courtesy"

6. employed in a specified capacity from time to time;

"casual employment"

"a casual correspondence with a former teacher"

"an occasional worker"

7. characterized by a feeling of irresponsibility;

"a broken back is nothing to be casual about; it is no fooling matter"

8. natural and unstudied;

"using their Christian names in a casual way"

"lectured in a free-and-easy style"

9. not showing effort or strain;

"a difficult feat performed with casual mastery"

"careless grace"

casual (adj.)

late 14c., "subject to or produced by chance," from Middle French casuel (15c.), from Late Latin casualis "by chance," from Latin casus "chance, occasion, opportunity; accident, event" (see case (n.1)).

Of persons, in the sense of "not to be depended on, unmethodical," it is attested from 1883; meaning "showing lack of interest" is from 1916. Of clothes, "informal," from 1939. Related: Casually.

irregular, casual, informal

这些形容词均有"非正式的，非正规的"之意。

irregular： 指不按常规、固定模式或计划做事；或指不隶属于任何机构或组织。

casual： 指不太注意场合，仪表等，随意性强。

informal： 指语言、穿着等随便，也指不举行任何形式或仪式的活动。

random, casual

这两个形容词均含"随便的，任意的"之意。

random： 指无明确的方向或目的、方法与系统，暗示没有指挥或控制。

casual： 指非正式的，轻松随便的，强调随和性。

These designers established the modem dress code, letting playsuits and other activewear outfits suffice for casual clothing, allowing pants to enter the wardrobe, and prizing rationalism and versatility in dress, in contradiction to dressing for an occasion or allotment of the day.

出自-2017年6月阅读原文

Worldwide people speak differently from the way they write, and texting -quick, casual and only intended to be read once — is actually a way of talking with your fingers.

出自-2014年6月阅读原文

Once purchased and trained, this would allow the casual user to save money and time, freeing up precious space in our busy lives to read a good book.

2018年6月六级真题（第三套）阅读 Section A

These designers established the modern dress code, letting playsuits and other active wear outfits suffice for casual clothing, allowing pants to enter the wardrobe, and prizing rationalism and versatility in dress, in contradiction to dressing for an occ

2017年6月六级真题（第三套）阅读 Section C

Some 60, 000 novels were published during the victorian age, from 1837 to 1901; today a casual reader might be able to name a half-dozen of them.

2018年高考英语浙江卷 阅读理解 阅读A 原文

It usually leads to no good-drinking, drugs and casual sex.

出自-2012年考研阅读原文

It usually leads to no good—drinking, drugs and casual sex.

2012年考研真题（英语一）阅读理解 Section Ⅱ

a casual acquaintance

泛泛之交

牛津词典

a casual friendship

一般的友谊

牛津词典

to have casual sex (= to have sex without having a steady relationship with that partner)

做露水鸳鸯

牛津词典

a casual encounter/meeting

不期而遇；邂逅

牛津词典

a casual passer-by

碰巧过路的人

牛津词典

The exhibition is interesting to both the enthusiast and the casual visitor.

热心的爱好者和碰巧来参观的人都认为这个展览有意思。

牛津词典

The disease is not spread by casual contact.

此病不会通过偶然接触传染。

牛津词典

‘What did he say about me? ’ she asked as casually as she could.

“他说了我什么？”她尽量装着不在意地问。

牛津词典

They chatted casually on the phone.

他们在电话上闲聊。

牛津词典

dressed casually in jeans and T-shirt

随便穿着牛仔裤和T恤衫

牛津词典

[不可数名词]He was sure that the casualness of the gesture was deliberate.

他确信那似乎漫不经心的姿态是有意装出来的。

牛津词典

dressed in casuals

穿着便装

牛津词典

They are employed on a casual basis (= they do not have a permanent job with the company) .

他们被雇为临时工。

牛津词典

a casual manner

漫不经心的样子

牛津词典

It was just a casual remark─I wasn't really serious.

我只是随便说说，并不当真。

牛津词典

He tried to sound casual, but I knew he was worried.

他讲话时试图显得不在乎，但我知道他心里着急。

牛津词典

They have a casual attitude towards safety (= they don't care enough) .

他们对安全问题采取无所谓的态度。

牛津词典

a casual glance

随便扫一眼

牛津词典

It's obvious even to the casual observer.

即便再马虎的人也能一眼看明白是怎么回事。

牛津词典

casual clothes (= comfortable clothes that you choose to wear in your free time)

便装

牛津词典

family parties and other casual occasions

家庭聚会和其他非正式场合

牛津词典

casual workers/labour

临时工；零工

牛津词典

Students sometimes do casual work in the tourist trade.

学生有时做些旅游方面的零工。

牛津词典

It became increasingly expensive to hire casual workers.

雇用临时工越来越贵了。

柯林斯高阶英语词典

...establishments which employ people on a casual basis, such as pubs and restaurants...

酒吧、饭店等雇用临时工的地方

柯林斯高阶英语词典

I also bought some casual clothes for the weekend.

我还买了些周末穿的休闲装。

柯林斯高阶英语词典

Even a casual observer could hardly have failed to notice the heightening of an already tense atmosphere.

即便是不经意的旁观者也一定已经觉察到本就紧张的气氛进一步加剧了。

柯林斯高阶英语词典

What you mean as a casual remark could be misinterpreted...

你随便说的一句话，可能就被曲解了。

柯林斯高阶英语词典

It's difficult for me to be casual about anything...

要我轻松处事很难。

柯林斯高阶英语词典

He's an easy-going, friendly young man with a casual sort of attitude towards money.

他是个随和、友善的年轻人，不太在意金钱。

柯林斯高阶英语词典