17
vulnerable(adjective, susceptible)
12
allergic
11
exposed
10
unprotected(adjective, susceptible)
9
unguarded(adjective, susceptible)
7
susceptible
5
clairvoyant
4
affected
4
nonexempt
3
liable(adjective, open, likely, irresponsible)
3
able
3
consenting
3
in danger(expression, idiom, unsusceptible)
2
amenable
2
responsible(adjective, charge, accountable)
1
good
1
accountable
1
acquiescent
1
adequate
1
apt
11 years ago|1.2k views|share |citing 
APASmart Define. (2015). immune thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/immune/thesaurus/antonyms
ChicagoSmart Define. 2015. "immune thesaurus" https://smartdefine.org/immune/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, immune thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/immune/thesaurus/antonyms>.
MLASmart Define. "immune thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/immune/thesaurus/antonyms>