unriveted

/AH0 N R IH1 V AH0 T AH0 D/
verb
  1. 1

    To remove or loosen the rivets of.

adjective
  1. 1

    Not fastened with rivets.

Source: https://en.wiktionary.org/wiki/unrivet, https://en.wiktionary.org/wiki/unriveted