informal 

  1. 形容詞
非正式的, 非正規的
輕鬆友好的
不拘禮節的
日常使用的
口語的, 會話體的
通俗的

    同義字詞
heterodox,irregular,unceremonious,unconventional,unorthodox
casual,everyday,workaday
colloquial,conversational,nonliterary,unliterary,vernacular,vulgar

例句

  1. In stock . Informal writing your thing?
  2. An informal German restaurant full of character.
  3. These activities are either formal or informal .
  4. Her work is often informal and frequently unsung.
  5. Do you want to be seen as being: Formal or informal ?