Answer :
main entry: rolled, furled
Definition: rolled up and secured
Usage: furled sail bound securely to the spar ; a furled flag, his rolled umbrella hanging on his arm
Antonyms: unbound
definition: not restrained or tied down by bonds
Antonyms: unbound
Definition: not secure within a cover
Usage: an unbound book
Antonyms: free
Definition: unconstrained or not chemically bound in a molecule or not fixed or capable of relatively unrestricted motion.
Usage: free expansion ; free oxygen;or a free electron