hardcore
noun
[ ˈhɑːdkɔː ]
• the most active, committed, or strict members of a group or movement.
• "the party still has a hard core of supporters that will always vote for them"
Similar:
diehard,
staunch,
dedicated,
committed,
steadfast,
hard-line,
dyed-in-the-wool,
long-standing,
extreme,
entrenched,
radical,
intransigent,
uncompromising,
rigid,
deep-dyed,
• pornography of a very explicit or extreme kind.
• popular music that is experimental in nature and typically characterized by high volume and aggressive presentation.
• broken bricks, rubble, or similar solid material used as a filling or foundation in building.
hardcore
adjective
• highly committed in one's support for or dedication to something.
• "hardcore gamers"
• denoting or relating to pornography of a very explicit or extreme kind.
• "online hardcore porn"
• denoting or relating to a type of experimental popular music that is typically characterized by high volume and aggressive presentation.
• "hardcore punk"