2
impenetrable(adjective, hard, unfeeling, unsympathetic, hardened)
2
indifferent(adjective, hard, careless, cold, cruel)
2
inexcitable
2
insentient(adjective, hard, careless, indifferent, cruel)
2
numb(noun, adjective, cold, indifferent, unresponsive)
2
safe(adjective, unaffected, protected, resistant, invulnerable)
2
senseless(adjective, dead, insensitive, insusceptible)
2
unconscious(adjective, cold, indifferent, unresponsive, numb)
2
unemotional(adjective, hard, unfeeling, unsympathetic, hardened)
2
unpassionate
2
unsympathetic(adjective, hard, careless, indifferent, cruel)
2
vaccinated
1
affectless
1
allowed(safe, unaffected, protected, resistant, invulnerable)
1
aloof(adjective, hard, indifferent, unkind, unresponsive)
1
anaesthetised
1
arctic
1
asleep(adjective, dead, insensitive, insusceptible)
1
autistic
1
benumbed(adjective, hard, dead, unfeeling, unsympathetic)
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>