a. | 1. | Not reliable; untrustworthy. See Reliable. |
Adj. | 1. | unreliable - liable to be erroneous or misleading; "an undependable generalization" Synonyms: undependable |
2. | unreliable - not to be trusted Synonyms: undependable | |
3. | unreliable - not worthy of reliance or trust; "in the early 1950s computers were large and expensive and unreliable"; "an undependable assistant" Synonyms: undependable Antonyms: dependable, reliable - worthy of reliance or trust; "a reliable source of information"; "a dependable worker" | |
4. | unreliable - dangerously unstable and unpredictable; "treacherous winding roads"; "an unreliable trestle" Synonyms: treacherous | |
5. | unreliable - lacking a sense of responsibility |