Antonyms of adj prone

2 senses of prone

Sense 1
prone -- (having a tendency (to); often used in combination; "a child prone to mischief"; "failure-prone")

INDIRECT (VIA inclined) -> disinclined -- (unwilling because of mild dislike or disapproval; "disinclined to say anything to anybody")

Sense 2
prone, prostrate -- (lying face downward)

INDIRECT (VIA unerect) -> erect, vertical, upright -- (upright in position or posture; "an erect stature"; "erect flower stalks"; "for a dog, an erect tail indicates aggression"; "a column still vertical amid the ruins"; "he sat bolt upright")

Similarity of adj prone

2 senses of prone

Sense 1
prone -- (having a tendency (to); often used in combination; "a child prone to mischief"; "failure-prone")
       => inclined (predicate) (vs. disinclined) -- ((often followed by `to') having a preference, disposition, or tendency; "wasn't inclined to believe the excuse"; "inclined to be moody")

Sense 2
prone, prostrate -- (lying face downward)
       => unerect (vs. erect) -- (not upright in position or posture)