1. (adj)unsusceptible, insusceptible not susceptible to
Definitions of 'insusceptible'
Webster 1913 Dictionary
1. (adj)insusceptible not susceptible; not capable of being moved, affected, or impressed; that can not feel, receive, or admit; as, a limb insusceptible of pain; a heart insusceptible of pity; a mind insusceptible to flattery