Antonyms of adj duty-bound

1 sense of duty-bound

Sense 1
duty-bound (predicate), obliged (predicate) -- (under a moral obligation to do something)

INDIRECT (VIA obligated) -> unobligated -- (not obligated)

Similarity of adj duty-bound

1 sense of duty-bound

Sense 1
duty-bound (predicate), obliged (predicate) -- (under a moral obligation to do something)
       => obligated (predicate) (vs. unobligated) -- (caused by law or conscience to follow a certain course; "felt obligated to repay the kindness"; "was obligated to pay off the student loan")