| paranoia |
| fanaticism(noun, passion, zeal, keenness, obstinacy) |
| possession |
| infatuation(noun, love, passion, desire, thing) |
| mania(noun, love, passion, desire, thing) |
| obsession(noun, love, passion, desire, thing) |
| single-mindedness(noun, passion, hatred, zeal, attraction) |
| zealotry(noun, passion, hatred, zeal, keenness) |
| compulsion(noun, love, passion, desire, thing) |
| craze(noun, love, passion, desire, interest) |
| fixation(noun, love, passion, desire, thing) |
| fixed idea(noun, expression, idiom, love, passion) |
| extreme devotion |
| hang-up(noun, love, passion, desire, thing) |
| preoccupation(noun, love, passion, desire, thing) |
| bigotry(noun, passion, hatred, zeal, keenness) |
| craziness(noun, love, passion, desire, thing) |
| enthusiasm(noun, love, passion, desire, thing) |
| extremism(noun, passion, hatred, zeal, keenness) |
| fascination(noun, love, passion, desire, thing) |