The meaning of UNRELIABLE is not reliable : undependable, untrustworthy. How to use unreliable in a sentence.

Real-time conversations and posts may seem random, unreliable, or unmeasurable when in fact they can be quantified and analyzed.

UNRELIABLE definition: not reliable; not to be relied or depended on. See examples of unreliable used in a sentence.

1. inaccurate, unconvincing, implausible, mistaken, false, uncertain, fake, deceptive, erroneous, unsound, fallible, specious, delusive The figures were unreliable because the sample sizes were too …

If you describe a person, machine, or method as unreliable, you mean that you cannot trust them. Diplomats can be a notoriously unreliable and misleading source of information. His judgement was …

Definition of unreliable adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Nov 24, 2025 · Noun [edit] unreliable (plural unreliables) One who or that which cannot be relied upon. quotations

UNRELIABLE meaning: 1 : not able to be trusted to do or provide what is needed or promised; 2 : not believable or trustworthy

unreliable meaning, definition, what is unreliable: unable to be trusted or depended on: Learn more.

Unreliable means not able to be trusted or depended on. It describes someone or something that is inconsistent, unpredictable, or likely to fail in performance or accuracy.