Definitions

unreliable

[uhn-ri-lahy-uh-buhl] / ˌʌn rɪˈlaɪ ə bəl /

ADJECTIVE

not trustworthy, not true

Synonyms

STRONGEST

capricious deceptive dubious false fickle inaccurate irresponsible treacherous tricky uncertain unsound unstable untrustworthy

STRONG

undependable

WEAK

deceitful delusive disreputable erroneous fake fallible fly-by-night furtive hallucinatory hollow implausible inconstant makeshift meretricious mistaken pretended pseudo questionable sham shifty specious unconvincing underhand underhanded unfaithful unsure untrue vacillating wavering weak

Antonyms

STRONGEST

accurate certain clear constant correct definite dependable faithful forthright frank honest reliable right stable steady strong sure true trustworthy truthful

WEAK

responsible

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Although a small number of treatments showed signs of potential benefit, most were backed by weak or low quality evidence, making the reported effects unreliable.

From Science Daily

Getting human-shaped robots into warehouses or industrial sites to move boxes is one thing, he said; building a robot butler is beyond the industry’s current capabilities, with current robots too unreliable to perform complex tasks.

From The Wall Street Journal

Her family said the verdict was based on extremely limited and unreliable evidence: a piece of cloth bearing the words "Woman, Resistance, Freedom", and an unpublished audio message.

From BBC

Efforts to directly date fossil remains such as bones or teeth have often resulted in unreliable or inconsistent ages.

From Science Daily

Isaac: We spoke that he’s very much an unreliable narrator.

From Los Angeles Times

unreliable

Example Sentences

Related Words