182 entries under adjective topic. ×

43
stable(strain, firmness, safe, labour)
42
strong(strain, firmness, safe, unaffected)
40
firm(strain, firmness, safe, labour)
38
sound(strain, perfect, firmness, safe)
36
resistant(strain, resist, firmness, safe)
23
proof(strain, resist, firmness, labour)
21
refractory(strain, firmness, labour, hardiness)
21
robust(strain, firmness, labour, hardiness)
21
steady(strain, firmness, safe, labour)
20
protected(secure, perfect, safe, unaffected)
20
fast(strain, firmness, safe, labour)
20
impregnable(strain, firmness, safe, labour)
20
resilient(strain, firmness, unaffected, labour)
20
resist(strain, firmness, labour, hardiness)
20
rigid(strain, firmness, labour, hardiness)
20
tight(strain, firmness, safe, unaffected)
20
tolerant(strain, firmness, labour, hardiness)
20
unyielding(strain, firmness, labour, hardiness)
19
safe(secure, perfect, safe, intact)
18
exempt(clear, free, allow, responsibility)
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APASmart Define. (2015). immune thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/immune/thesaurus/synonyms
ChicagoSmart Define. 2015. "immune thesaurus" https://smartdefine.org/immune/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, immune thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/immune/thesaurus/synonyms>.
MLASmart Define. "immune thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/immune/thesaurus/synonyms>