Antonyms of adj hidebound

1 sense of hidebound

Sense 1
hidebound, traditionalist -- (stubbornly conservative and narrow-minded)

INDIRECT (VIA conservative) -> liberal -- (tolerant of change; not bound by authoritarianism, orthodoxy, or tradition)

Similarity of adj hidebound

1 sense of hidebound

Sense 1
hidebound, traditionalist -- (stubbornly conservative and narrow-minded)
       => conservative (vs. liberal) -- (resistant to change)