- constituting or of a hard core
- absolute; unqualified: a hardcore radical
- explicit, rather than suggestive, in the portrayal of sexual acts; graphic: hardcore pornography
Often written hard-core
- Intensely loyal; die-hard: a hardcore secessionist; a hardcore golfer.
- Stubbornly resistant to improvement or change: hardcore poverty.
- Extremely graphic or explicit: hardcore pornography.
A form of exceptionally harsh punk rock.