hardened

equivalents

curable

hard

sunbaked

tough

toughened

synonyms

Philistine

abandoned

acclimated

acclimatized

accommodated

accustomed

adapted

adjusted

annealed

backed

brazen

calcified

callous

callous

calloused

case-hardened

cold

cold of heart

coldblooded

coldhearted

conditioned

conscienceless

crusted

crusty

crystallized

experienced

familiarized

flinthearted

flinty

fossilized

granulated

hard

hard

hard of heart

hard-boiled

hardhearted

heartless

hornified

impenetrable

impenitent

impervious

incrusted

indurate

indurated

insensible

insensitive

insolent

inured

lapidified

lost to shame

rhymes

gardened

pardoned