WordWeb Online

1. A speculative scheme that depends on unstable factors that the planner cannot control
   "his proposal was nothing but a house of cards";
   - bubble
    
2. An unstable construction with playing cards
   "he built three levels of his house of cards before it collapsed";
   - cardhouse, card-house, cardcastle

Derived forms: houses of cards

Type of: construction, scheme, strategy, structure

Encyclopedia: House of cards