Lacking, or showing a lack of, pity, mercy, etc.; unfeeling
That cannot be penetrated or passed through
Using or based on data that are readily quantified or verified:
Having or showing no mercy; cruel; relentless; pitiless
Not easily moved to pity or sympathy; hardhearted
Rigorous means very active or severe.
Of or like steel, as in hardness
The definition of stern is someone who is very serious or strict.
Not willing to change or be persuaded; resolute:
A city of southeast-central Michigan north-northwest of Detroit. Founded on the site of a fur-trading post established in 1819, it became an automobile-manufacturing center in the early 1900s.
As hard as stone.
Find another word for flinty. In this page you can discover 19 synonyms, antonyms, idiomatic expressions, and related words for flinty, like: callous, cruel, adamantine, impenetrable, hard, unmerciful, obdurate, rigorous, steely, stern and unimpressible.