inauthentic (adj.)

• contradictory
• fallacious
• faulty
• flawed
• garbled
• illogical
• inconclusive
• incongruous
• inconsequent
• inconsequential
• inconsistent
• invalid
• irrational
• loose
• reasonless
• self-contradictory
• senseless
• spurious
• unauthentic
• unconnected
• unfounded
• unreasonable
• unreliable
• unscientific