60 entries under defense topic. ×

36
safe(adjective, characteristic, strong, harm, protection)
29
invulnerable(adjective, characteristic, protection)
29
secure(verb, adjective, characteristic, strong, protection)
20
armed(adjective, characteristic, protection)
19
guarded(verb, adjective, characteristic, strong, protection)
19
protected(verb, adjective, characteristic, strong, weak)
18
defensible(adjective, characteristic, protection)
16
invincible(adjective, characteristic, protection)
16
sheltered(adjective, characteristic, protection)
13
impenetrable(adjective, characteristic, protection)
12
strong(adjective, characteristic, protection)
12
unsusceptible(adjective, characteristic, strong, protection)
12
impregnable(adjective, characteristic, protection)
12
unassailable(adjective, characteristic, protection)
12
unconquerable(adjective, characteristic, protection)
11
shielded(adjective, characteristic, protection)
11
unbeatable(adjective, characteristic, protection)
11
covered(adjective, characteristic, protection)
10
screened(adjective, characteristic, protection)
9
untouchable(adjective, characteristic, protection)
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APASmart Define. (2016). vulnerable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/vulnerable/thesaurus/antonyms
ChicagoSmart Define. 2016. "vulnerable thesaurus" https://smartdefine.org/vulnerable/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, vulnerable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/vulnerable/thesaurus/antonyms>.
MLASmart Define. "vulnerable thesaurus" 11 March 2016. Web. 25 September 2026. <https://smartdefine.org/vulnerable/thesaurus/antonyms>