meaning of casehardened
1. Having the surface hardened, as iron tools.
2. Hardened against, or insusceptible to, good influences; rendered callous by persistence in wrongdoing or resistance of good influences; -- said of persons.
1. Having the surface hardened, as iron tools.
2. Hardened against, or insusceptible to, good influences; rendered callous by persistence in wrongdoing or resistance of good influences; -- said of persons.