Re: Idioms The reasons why idioms are not appropriate in formal E such as academic writing are:
- idioms are informal- they are more typical of speech
- idioms are culture-specific- they may not be understood by all readers
- idioms interfere with clear communication- academic ideas are best presented directly and transparently
In reality, some categories of idiom are used in formal writing, while others are not, so your inquiry needs to be more detailed. I believe that you can use the idiom "at the end of one's tether" depending on how formal you choose to be. |