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n. the trait of not being dependable or reliable

"There is real diversity in this village of some 300 people which encompasses 527 acres, but the level of quality and consistency is almost unmatched in Burgundy, a region whose wines sometimes remind me of British sports cars of the 1960s in their fickleness and undependability, although the wines are more predictable today than in years past."

irresponsibility    irresponsibleness   

irreproducibility    fallibility    instability   

dependability    undecidability