Antonyms of adj obdurate

2 senses of obdurate

Sense 1
cussed, obdurate, obstinate, unrepentant -- (stubbornly persistent in wrongdoing)

INDIRECT (VIA unregenerate) -> regenerate -- (reformed spiritually or morally; "a regenerate sinner"; "regenerate by redemption from error or decay")

Sense 2
flinty, flint, granitic, obdurate, stony -- (showing unfeeling resistance to tender feelings; "his flinty gaze"; "the child's misery would move even the most obdurate heart")

INDIRECT (VIA hardhearted) -> softhearted, soft-boiled -- (easily moved to pity or sorrow; "a softhearted judge")

Similarity of adj obdurate

2 senses of obdurate

Sense 1
cussed, obdurate, obstinate, unrepentant -- (stubbornly persistent in wrongdoing)
       => unregenerate (vs. regenerate), unregenerated -- (not reformed morally or spiritually; "unregenerate human nature"; "unregenerate conservatism")

Sense 2
flinty, flint, granitic, obdurate, stony -- (showing unfeeling resistance to tender feelings; "his flinty gaze"; "the child's misery would move even the most obdurate heart")
       => hardhearted (vs. softhearted), heartless -- (lacking in feeling or pity or warmth)