3
unkillable
1
good
1
salubrious
1
strong(feature, powerful, strenuous)
0
actual
0
advantageous
0
anodyne
0
assured
0
attached
0
beneficial
0
benign
0
benignant
0
bound
0
calm
0
collected
0
constrained
0
contemptible
0
controlled
0
cool
0
curative
11 years ago|25 views|share |citing 
APASmart Define. (2015). fail-safe thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/fail-safe/thesaurus/related
ChicagoSmart Define. 2015. "fail-safe thesaurus" https://smartdefine.org/fail-safe/thesaurus/related (accessed September 22, 2026).
HarvardSmart Define 2015, fail-safe thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/fail-safe/thesaurus/related>.
MLASmart Define. "fail-safe thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/fail-safe/thesaurus/related>