unusual的最高级

 unusual的最高级most unusual，即只需要在前面加上most即可。

释义

a. 形容词 different from what is usual or ordinary 异常的﹐不平常的

The cake has a very unusual flavor . 那块蛋糕有一种异乎寻常的味道。

interesting or attractive because of being different 独特的﹐与众不同的

Alan ' s artwork is very unusual . 艾伦的工艺品非常独特。idiom 惯用语 it is unusual to do sth

It is unusual to find diamonds of this size . 很难得发现这样大小的钻石。

it is unusual for sb to do sth

Earlier last century , it was unusual for women to have a career . 上世纪初﹐妇女就业是很少有的。

as usual/ usual 像平时一样，无乜特别

unusual 不平常， 不寻常

not unusual 不是不寻常/少见， 用于有些人少见多怪，觉得某件事少见，而有些人则会应 not unusual， 即不是少见，而时有发生。

It's not unusual, to be mad with anyone It's not unusual, to be sad with anyone but if I ever find that you've changed at anytime it's not unusual to find out that I'm in love with you whoa-oh-oh-oh-oh [ www.azlyrics.com ]

www.azlyrics.com/lyrics/tomjones/itsnotunusual.html - 2k -

嬲人不是不寻常，有甚么出奇。

It is not unusual for these drawers to be unlabeled. The experienced assistants know exactly where each herb is located. ... It is not unusual to hear of people suffering severe reactions because of overdoses of certain herbs. ...

www.watchtower.org/library/g/2000/11/8/article_01.htm - 18k -

装中药的抽屉没有贴上标籤不是少见。经常见到人因过量服用某些草药而有过份反应。

可以说，not unusual 意思和 usual 一样，但语气是较强调。和中文的 不是不寻常 一样。