hard-core

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

1. stubbornly resistant to change or improvement
- hard-core addicts
• Similar to:
inflexible
2. intensely loyal
- his hard-core supporters
• Syn:
hardcore
• Similar to:
loyal
3. extremely explicit
- hard-core pornography
• Syn:
hardcore
• Similar to:
explicit, expressed