hardened
[adjective]
Synonyms:
- habitual, chronic, incorrigible, inveterate, shameless
- accustomed, habituated, inured, seasoned, toughened

[TahlilGaran] English Synonym Dictionary ▲

hard‧ened /ˈhɑːdnd $ ˈhɑːr-/ adjective
[Word Family: noun: hardship, hardness, hardiness; adjective: hard, hardened, hardy; adverb: hard, hardly; verb: harden]

1. hardened criminal/police officer etc a criminal, police officer etc who has had a lot of experience of things that are shocking and is therefore less affected by them

2. become hardened (to something) to become used to something shocking because you have seen it many times

[TahlilGaran] Dictionary of Contemporary English ▲