76 entries under strong topic. ×

1
vital
0
compacted(adjective, set, hard, firm)
0
compressed(adjective, set, hard, firm)
0
concentrated(adjective, set, hard, firm)
0
consolidated(adjective, set, hard, firm)
0
fastened(adjective, solid, stable, sure)
0
hard-handed(adjective, set, hard, compact)
0
hard as nails(expression, adjective, idiom, set)
0
hardened(adjective, set, hard, firm)
0
impenetrable(adjective, set, hard, firm)
0
indurated(adjective, set, hard, firm)
0
locked(adjective, solid, stable, sure)
0
packed(adjective, set, hard, firm)
0
rock hard(expression, adjective, hard, tough)
0
sound(adjective, solid, stable, sure)
0
tough inflexible(expression, adjective, hard, tough)
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APASmart Define. (2015). iron thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/iron/thesaurus/synonyms
ChicagoSmart Define. 2015. "iron thesaurus" https://smartdefine.org/iron/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, iron thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/iron/thesaurus/synonyms>.
MLASmart Define. "iron thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/iron/thesaurus/synonyms>