These words all describe people who are good at learning, understanding and thinking about things, and the actions that show this ability.以上各词均形容人有才智、悟性强、聪明。
intelligentgood at learning, understanding and thinking in a logical way about things; showing this ability指有才智的、悟性强的、聪明的：◆He's a highly intelligent man.他是一个很有才智的人。◆She asked a lot of intelligent questions.她问了许多机智的问题。
smart(especiallyNAmE) quick at learning and understanding things; showing the ability to make good business or personal decisions指聪明的、机敏的、精明的：◆She's smarter than her brother.她比她哥哥聪明。◆That was a smart career move.那是个人事业发展上的明智之举。
clever(sometimesdisapproving, especiallyBrE) quick at learning and understanding things; showing this ability指聪明的、聪颖的：◆How clever of you to work it out!你解决了这个问题真是太聪明了。◆He's too clever by half, if you ask me.恕我直言，他未免聪明过头了。NOTEPeople use clever in the phrase Clever boy/girl! to tell a young child that they have learnt or done sth well. When used to or about an adult clever can be disapproving. * clever 用于短语 Clever boy/girl!（多么聪颖的男孩/女孩！）表示孩子学习悟性强、做事聪明伶俐。clever 用于成年人可能含贬义。
brilliantextremely intelligent or skilful指聪颖的、技艺高的：◆He's a brilliant young scientist.他是一个才华横溢的青年科学家。
brightintelligent; quick to learn指聪明的、悟性强的：◆She's probably the brightest student in the class.她大概是班里最聪明的学生。NOTEBright is used especially to talk about young people. Common collocations of bright include girl, boy, kid, student, pupil. * bright 主要用于年轻人，常与之搭配的词有 girl、boy、kid、student、pupil 等。
These words all describe things that are shining or full of light or colours that are strong and easy to see.以上各词均形容事物明亮、光线充足、鲜艳夺目。
brightfull of light; shining strongly; (of colours) strong and easy to see指光线充足的、明亮的、色彩鲜明的：◆a bright yellow dress鲜黄色的连衣裙
brilliantvery bright指明亮的、鲜艳的：◆The sky was a brilliant blue.天空一片蔚蓝。
vivid(approving) (of colours) bright and strong指（颜色）耀眼的、鲜艳的、醒目的：◆His eyes were a vivid green.他的眼睛碧绿。
vibrant(approving) (of colours) bright and strong指（颜色）耀眼的、鲜艳的、醒目的：◆The room was decorated in vibrant blues and greens.那房间以鲜艳的蓝绿两色装饰。
vivid or vibrant?用 vivid 还是 vibrant？
These two words are very similar, but vivid emphasizes how bright a colour is, while vibrant suggests a more lively and exciting colour or combination of colours.这两个词非常相似，但 vivid 强调颜色鲜艳明亮，而 vibrant 则指色彩或颜色组合活泼而富生气。
These are all informal words that describe sb/sth that is very good, pleasant, enjoyable, etc.以上各词均为非正式用语，表示美妙的、使人快乐的、令人愉快的等。
great(informal) very good; giving a lot of pleasure指美妙的、好极的、使人快乐的：◆We had a great time in Madrid.我们在马德里玩得很开心。
cool(informal) used to show that you admire or approve of sth, often because it is fashionable, attractive or different指因时髦、漂亮或与众不同而令人钦佩的、绝妙的、顶呱呱的：◆I think their new song's really cool.我认为他们的新歌棒极了。
fantastic(informal) extremely good; giving a lot of pleasure指极好的、了不起的、非常愉快的：◆'How was your holiday?' 'Fantastic!'“你假期过得好吗？” “棒极了！”
fabulous(informal) extremely good指极好的、绝妙的：◆Jane's a fabulous cook.简的烹饪技巧堪称一绝。Fabulous is slightly more old-fashioned than the other words in this set. * fabulous 较这组词中的其他词稍显过时。
terrific(informal) extremely good; wonderful指极好的、绝妙的、了不起的：◆She's doing a terrific job.她活儿干得真棒。
brilliant(BrE, informal) extremely good; wonderful指极好的、绝妙的、了不起的：◆'How was the show?' 'Brilliant!'“演出怎么样？” “棒极了！”
awesome(informal, especiallyNAmE) very good, impressive, or enjoyable指极好的、令人惊叹的、极好玩的：◆The show was just awesome.演出实在棒极了。
epic(informal) very good, impressive or enjoyable极好的；给人深刻印象的；令人愉快的：◆The adventure and action are truly epic in scope.惊险刺激的动作场面的确壮观。
Patterns
to have a(n) great/cool/fantastic/fabulous/terrific/brilliant/awesome time
to look/sound great/cool/fantastic/fabulous/terrific/brilliant/awesome