Grayhen is a term used to describe a female chicken that has grayish-colored feathers. However, in certain circumstances, it is necessary to find synonyms for the word grayhen to avoid repetition or for creative writing purposes. Some synonyms for grayhen include 'hen with gray plumage', 'dove-gray hen', 'ashen-feathered chicken', 'silver gray hen', 'mousy-gray hen', and 'slate gray hen.' Some other descriptive phrases that can be used as alternatives to grayhen include 'smoky-colored hen,' 'charcoal-feathered hen,' and 'stormy-gray chicken.' Finding the right synonym or descriptive phrase can add depth and vividness to your writing.