casual['kæʒjuәl]
汉语翻译
a. 偶然的, 不经意的, 便装的
n. 临时工, 待命士兵
【医】 意外的, 偶然的, 急救入院者
【经】 偶然的, 碰巧的, 临时的
词型变化
名词:casualness 副词:casually
词意辨析
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。
英语解释
形容词 casual:
- marked by blithe unconcern同义词：insouciant, nonchalant
- without or seeming to be without plan or method; offhand
- suited for everyday use同义词：everyday
- occurring or appearing or singled out by chance同义词：accidental, chance
- hasty and without attention to detail; not thorough同义词：cursory, passing, perfunctory
- occuring from time to time同义词：occasional
- characterized by a feeling of irresponsibility同义词：fooling
- natural and unstudied同义词：free-and-easy
- not showing effort or strain同义词：effortless
例句
- Such casual dress would not be correct for a formal occasion.这样的便服不宜在正式的场合穿。
- He likes casual attires.他喜欢休闲服装。
- A casual newspaper reader wouldn't like articles on politics everyday.不经心的报纸读者不会喜欢每天都有政论文章。
- John is a casual; he can't find a proper job anywhere.约翰是个临时工，他到处找不到正式工作。
- She is casual about winning the prize.她对获奖漫不经心。
详细解释
ca.su.al
adj.（形容词）Occurring by chance.See Synonyms at chance 偶然发生的参见 chance
Occurring at irregular or infrequent intervals; occasional:临时的，间或的：不规则或不经常地间断发生的；偶然发生的：例句：casual employment at a factory; a casual correspondence with a former teacher.工厂的临时雇佣人员；与先前老师的不定期通信
Unpremeditated; offhand:非预谋的；随便的：例句：a casual remark.即席发言
Being without ceremony or formality; relaxed:放松的：没有仪式或规格的；放松的：例句：a casual evening with friends.与朋友的轻松聚会
Suited for everyday wear or use; informal.轻便的，非正式的：适于每日穿着或使用的；非正式的Not serious or thorough; superficial:肤浅的，漫不经心的：不严重或不全面的；浮浅的：例句：a casual inspection.漫不经心的调查
Showing little interest or concern; nonchalant:不关心的，无动于衷的：表现出较小兴趣或关心的；不关心的：例句：a casual disregard for cold weather.对于寒冷天气毫不在乎
Lenient; permissive:宽大的；允许的：例句：a casual attitude toward drugs.对毒品的听任态度
Not close or intimate; passing:不熟悉的：不接近的或不亲近的；忽略的：例句：a casual acquaintance with avant-garde music.略知先锋派音乐
n.（名词）One that serves or appears at irregular intervals, especially a temporary worker.临时工：不定时服务或出现的人，尤其指临时工Often casuals Casual clothing. 常作 casuals 便装A soldier temporarily attached to a unit while awaiting permanent assignment.暂编人员，分遣员：暂时编入某一单位等候固定任命的军士
来源：Middle English casuel 中古英语 casuel from Old French 源自 古法语 from Latin c3su3lis 源自 拉丁语 c3su3lis from c3sus [event] * see case 源自 c3sus [事件] *参见 case
【引伸】
ca.sually
adv.（副词）ca.sualness
n.（名词）