ppl. a. (UN-1 8.)
1648. Hexham, II. Ongestijft, Vnstifned, or Loose.
1889. Swinburne, Study B. Jonson, 96. The poem would be worthy of very high praise if the texture were unstiffened and undisfigured by awkward inversions.
1893. Daily News, 17 April, 6/3. Some have determined to abide by the unstiffened dresses of last year.