Unreliable synonyms

ŭn'rĭ-lī'ə-bəl
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Part of speech:
The opposite of dependable
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Marked by a lack of responsibility:
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Tending to deceive; apt to lie or cheat
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Acting or done in a deceptive, secret, or sly manner; dishonest and sneaky.
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Characterized by or resulting from caprice, inconsistency in feeling or purpose, a whim, or an unpredictable or impulsive behavior. See also arbitrary.
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Weak; ineffective
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Deceiving or intended to deceive
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Having the ring of truth or plausibility but actually fallacious:
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Alluring by false, showy charms; attractive in a flashy way; tawdry
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Uttering falsehood; dishonest or deceitful.
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Inconstant; fickle
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Not stable
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Given to or characterized by trickery; deceitful
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(Informal) Having or showing a tricky or deceitful nature; evasive
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Not faithful or loyal
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Changeable or unstable in affection, interest, loyalty, etc.; capricious
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Tending or likely to be erroneous:
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Lacking in vigour or expression.
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Unable to be predicted.
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Tending to delude.
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Producing hallucination
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Persuasive or ingratiating, especially in an effort to deceive.
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In horse management an unsound horse is one suffering ill-health that affects its suitability for its intended work.
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Containing or based on error; mistaken; wrong
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Deep-toned, dull, and muffled, as though resounding from something hollow
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Reputed or alleged
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Not genuine; fake:
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That will do for a while as a substitute
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Disposed to lie, cheat, defraud, or deceive.
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Determined or founded on individual discretion, especially when based on one’s opinion, judgment, or prejudice, rather than on fixed rules, procedures, or law. See also abuse of discretion.
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Being such that alteration is possible:
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(Colloquial, dated) In a condition of danger, as from illness; threatened with death.
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Not reputable; having or causing a bad reputation; discreditable
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Given to or marked by deliberate deceptiveness in behavior or speech.
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(Geol.) Designating a boulder or rock formation transported some distance from its original source, as by a glacier
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Characterized by irregular or intermittent activity, impulses, etc.; spasmodic; restless
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Easily excited, upset, etc.
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Unreliable or unscrupulous, especially with regard to business dealings:
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The definition of haphazard is something disorganized or without any particular order to it.
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Making arbitrary decisions, especially in an impulsive and forceful manner.
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Actuated by impulse or by transient feelings; inclined to make rapid decisions without due consideration.
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Having qualities attributed to the god Mercury or supposedly influenced by the planet Mercury; eloquent, clever, shrewd, thievish, etc.
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That can or should be questioned or doubted; open to doubt
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Of or like mercury
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(Statistics) Of statistical sample selection in which all possible samples have equal probability of selection
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Not substantial; slight; flimsy
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Subject to change; variable:
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Beyond prudence or reason; excessive:
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Lacking principles or moral scruples; unscrupulous:
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Not able to be held, as of an opinion or position; unholdable, indefensible.
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Appropriate to or characteristic of a villain:
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Tending to violence; explosive:
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Playful or fanciful, especially in a humorous way:
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The quality of being unreliable.
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(Of a measurement device) Accurate.
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The definition of reliable is dependable or capable of being trusted.
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The definition of responsible is being the person thing that caused something to happen.
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Worthy of trust; dependable; reliable
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Persuasive, effective, and cogent:
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The definition of inaccurate is something incorrect or wrong.
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Weak, defective, or liable to fail:
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(Obsolete) Faithful, dependable.
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The definition of furtive is doing something in a sneaky or hidden way.
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Find another word for unreliable. In this page you can discover 75 synonyms, antonyms, idiomatic expressions, and related words for unreliable, like: undependable, irresponsible, deceitful, underhanded, capricious, feckless, deceptive, specious, meretricious, false and giddy.