hard-core

English Thesaurus

1. extremely explicit (adj.all)

similar	:	explicit, expressed,
definition	:	precisely and clearly expressed or readily observable; leaving nothing to implication (adj.all)

2. intensely loyal (adj.all)

similar	:	loyal,
definition	:	steadfast in allegiance or duty (adj.all)

3. stubbornly resistant to change or improvement (adj.all)

similar	:	inflexible,
definition	:	incapable of change (adj.all)