1
cussed
1
degenerate(adjective, evil, nasty, harsh, vicious)
1
demanding
1
demoniac(adjective, evil, nasty, harsh, vicious)
1
depraved(adjective, evil, nasty, harsh, vicious)
1
detached
1
diamondlike
1
disciplinary(adjective, strong, hard, tough, severe)
1
distant
1
dog-eat-dog
1
dure
1
dyed-in-the-wool(adjective, strong, hard, tough, severe)
1
evil(adjective, nasty, harsh, vicious, wicked)
1
excruciating(adjective, evil, nasty, harsh, vicious)
1
ferocious(adjective, evil, nasty, harsh, vicious)
1
fierce(adjective, evil, nasty, harsh, cruel)
1
fixed
1
flint
1
flintlike
1
frowning(adjective, strong, hard, tough, severe)
11 years ago|7.3k views|share |citing 
APASmart Define. (2015). flinty thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/flinty/thesaurus/synonyms
ChicagoSmart Define. 2015. "flinty thesaurus" https://smartdefine.org/flinty/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, flinty thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/flinty/thesaurus/synonyms>.
MLASmart Define. "flinty thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/flinty/thesaurus/synonyms>