Obdurate

"Obdurate" in French

dur comme un roc

(Physically hardened, toughened)

opiniâtre

(Stubbornly persistent, generally in wrongdoing; refusing to reform or repent)

têtu

(Stubbornly persistent, generally in wrongdoing; refusing to reform or repent)

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.