149 entries under hard topic. ×

1
stiff-necked(adjective, strong, tough, severe)
1
stridulous(adjective, severe, sharp, flat)
1
tough(adjective, strong, severe, sharp)
1
tuneless(adjective, severe, sharp, flat)
1
uneven(adjective, severe, sharp, flat)
1
unfeeling(adjective, tough, severe, evil)
1
unlevel(adjective, severe, sharp, flat)
1
unmelodious(adjective, severe, sharp, flat)
1
unmusical(adjective, severe, sharp, flat)
1
unsparing(adjective, strong, tough, harsh)
0
aculeate(cutting, hurtful)
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
firm(adjective, strong, tough, severe)
0
gruff(adjective, severe, sharp, nasty)
0
immovable(adjective, strong, tough, sturdy)
0
indomitable(adjective, strong, tough, sturdy)
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APASmart Define. (2016). bitter thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/bitter/thesaurus/synonyms
ChicagoSmart Define. 2016. "bitter thesaurus" https://smartdefine.org/bitter/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, bitter thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/bitter/thesaurus/synonyms>.
MLASmart Define. "bitter thesaurus" 22 March 2016. Web. 26 September 2026. <https://smartdefine.org/bitter/thesaurus/synonyms>