adjective
1. tough and callous by virtue of experience (Freq. 2)
• Syn: ↑hard-bitten, ↑pugnacious
• Similar to: ↑tough
2. used of persons; emotionally hardened
-
faced a case-hardened judge
• Syn: ↑case-hardened, ↑hardened
• Similar to: ↑hard
3. (eggs) cooked until the yolk is solid
• Similar to: ↑cooked
Useful english dictionary. 2012.