Adjective undependable has 3 senses
- unreliable, undependable - not worthy of reliance or trust; "in the early 1950s computers were large and expensive and unreliable"; "an undependable assistant"
Antonyms: reliable, dependable, certain, sure, straight, tested, time-tested, tried, tried and true, true, undeviating
- undependable, unreliable - not to be trusted
Antonyms: trustworthy, trusty (indirect, via untrustworthy)
- undependable, unreliable - liable to be erroneous or misleading; "an undependable generalization"
Antonym: infallible (indirect, via fallible)
,