Main entry: undependable, unreliable
Definition: not worthy of reliance or trust
Usage: in the early 1950s computers were large and expensive and unreliable; an undependable assistant
Antonyms: reliable, dependable
Definition: worthy of reliance or trust
Antonyms: certain
Definition: established beyond doubt or question; definitely known
Definition: having or feeling no doubt or uncertainty; confident and assured
Definition: certain to occur; destined or inevitable
Antonyms: sound
Definition: financially secure and safe
Antonyms: sound
Definition: in good condition; free from defect or damage or decay
Main entry: treacherous, unreliable
Definition: dangerously unstable and unpredictable
Usage: treacherous winding roads; an unreliable trestle
Antonyms: safe
Definition: free from danger or the risk of harm
Main entry: undependable, unreliable
Definition: liable to be erroneous or misleading
Usage: an undependable generalization
Antonyms: infallible
Definition: incapable of failure or error
Main entry: unreliable
Definition: lacking a sense of responsibility
Antonyms: responsible
Definition: worthy of or requiring responsibility or trust; or held accountable