Synonyms|777Antonyms|138|Broader|12Narrower|7Related|206

94 entries under hard topic. ×

1
hard-boiled(adjective, mean, strong, tough)
1
hard-hearted(adjective, mean, tough, harsh)
1
hard-line(adjective, strong, tough, difficult)
1
hard as nails(expression, adjective, idiom, calm, strong)
1
mean(adjective, tough, harsh, inflexible)
1
robust(adjective, strong, secure, tough)
1
stringent(adjective, rigid, inflexible, strict)
1
thick-skinned(adjective, calm, mean, cool)
1
tough nut to crack(expression, adjective, idiom, mean)
1
uncompassionate(adjective, mean, tough, harsh)
1
unimpressible(adjective, mean, tough, harsh)
1
unsparing(adjective, strong, tough, sturdy)
0
astringent(adjective, strong, tough, sturdy)
0
bitter(adjective, strong, tough, sturdy)
0
by the book(expression, adjective, idiom, strong)
0
dense(adjective, strong, tough, sturdy)
0
disciplinary(adjective, strong, tough, sturdy)
0
ferric(adjective, strong, tough, sturdy)
0
ferrous(adjective, strong, tough, sturdy)
0
forbidding(adjective, strong, tough, sturdy)
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ChicagoSmart Define. 2015. "immovable thesaurus" https://smartdefine.org/immovable/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, immovable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/immovable/thesaurus/synonyms>.
MLASmart Define. "immovable thesaurus" 3 August 2015. Web. 24 September 2026. <https://smartdefine.org/immovable/thesaurus/synonyms>