Authentic
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delusory, unreliable, manufactured, supposititious, false, off, unlikely, corrupt, exploded, slack, erroneous, doubtful, deceptive, imitative, unreal, inaccurate, slipshod, inexact, implausible, incorrect, careless, improbable, unfaithful, delusive, fake, invalid, untrue, disputed, misleading, untrusty, unauthorized, corrupted, imprecise, counterfeit, bogus, unsound, slovenly, apocryphal, fabricated, wrong, loose, incredible, artificial, Falsified, fabulous, imitation, baseless, untrustworthy, untruthful, suppositious.