103 entries under hard topic. ×

1
stridulous(adjective, severe, sharp, flat)
1
tuneless(adjective, severe, sharp, flat)
1
uneven(adjective, severe, sharp, flat)
1
unfeeling(adjective, close, severe, harsh)
1
unlevel(adjective, severe, sharp, flat)
1
unmelodious(adjective, severe, sharp, flat)
1
unmusical(adjective, severe, sharp, flat)
0
hang-tough(adjective, strong, tough, severe)
0
adamant(adjective, strong, tough, sturdy)
0
adamantine(adjective, strong, tough, sturdy)
0
dense(adjective, strong, tough, sturdy)
0
ferric(adjective, strong, tough, sturdy)
0
ferrous(adjective, strong, tough, sturdy)
0
heavy(adjective, strong, tough, severe)
0
immovable(adjective, strong, tough, sturdy)
0
indomitable(adjective, strong, tough, sturdy)
0
insensible(adjective, strong, tough, sturdy)
0
steel(adjective, strong, tough, sturdy)
0
strong(adjective, tough, severe, sharp)
0
sturdy(adjective, strong, tough, rugged)
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APASmart Define. (2015). astringent thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/astringent/thesaurus/synonyms
ChicagoSmart Define. 2015. "astringent thesaurus" https://smartdefine.org/astringent/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, astringent thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/astringent/thesaurus/synonyms>.
MLASmart Define. "astringent thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/astringent/thesaurus/synonyms>