Synonyms of house of cards

Noun

1. house of cards, bubble, scheme, strategy

usage: a speculative scheme that depends on unstable factors that the planner cannot control; "his proposal was nothing but a house of cards"; "a real estate bubble"

2. house of cards, cardhouse, card-house, cardcastle, structure, construction

usage: an unstable construction with playing cards; "he built three levels of his cardcastle before it collapsed"