115 entries under adjective topic. ×

3
obtuse(noun, hard, indifferent, unfeeling)
3
proof(resist, resistant)
3
resistant(hard, resist, unfeeling, unsympathetic)
3
resistive(resist, resistant)
3
unaffected(hard, careless, indifferent, cruel)
3
unimpressible(cold, indifferent, unresponsive, numb)
3
unresponsive(hard, careless, indifferent, cruel)
3
unyielding
2
apathetic(hard, careless, indifferent, cruel)
2
cold(hard, careless, indifferent, cruel)
2
coldhearted(hard, indifferent, unfeeling, unsympathetic)
2
dead(informal, insensitive, insusceptible)
2
exempt(safe, unaffected, protected, resistant)
2
hardened(noun, hard, careless, indifferent)
2
impenetrable(hard, unfeeling, unsympathetic, hardened)
2
indifferent(hard, careless, cold, cruel)
2
insentient(hard, careless, indifferent, cruel)
2
numb(noun, cold, indifferent, unresponsive)
2
safe(unaffected, protected, resistant, invulnerable)
2
senseless(dead, insensitive, insusceptible)
11 years ago|4.8k views|share |citing 
APASmart Define. (2015). unsusceptible thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unsusceptible/thesaurus/synonyms
ChicagoSmart Define. 2015. "unsusceptible thesaurus" https://smartdefine.org/unsusceptible/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, unsusceptible thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unsusceptible/thesaurus/synonyms>.
MLASmart Define. "unsusceptible thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/unsusceptible/thesaurus/synonyms>