The clothes on the washing line were frozen stiff.

挂在晾衣绳上的衣服冻硬了。

《牛津词典》

The Armani line was at first noted for loose, smart-casual blazers that provided a refreshing alternative to both the stiff, formal suits and the sloppy, laid-back hippie style of the previous decade.

亚曼尼的设计最初以轻松、时髦又随意的上衣而著称，它开创了一种新颖的风格，摆脱了之前十年一直风行的两种样式：正式却死板的西装和过于随便的嬉皮风格。

youdao

For anyone seeking to understand the origins of Gore's political personality, routinely characterized as stiff and oddly formal, there are clues to be found in the direct line that traces back through the family to their political hero, Cordell Hull.

CNN: Excerpt: 'The Prince of Tennessee: The Rise of Al Gore'