flawed reasoning

• fallacyError in reasoning
• illogicalContrary to valid reasoning
• biasUnfair inclination or prejudice
• assumptionUnverified belief accepted as true
• errorFault in communication

sophistry · misleading · faulty · irrational · distorted · twisted · crooked · unsound · specious · deceptive · holes · leaps · gaps · muddy · slippery · circular · strawman · hasty

• misjudgementsmistakes, blunders, errors, oversights, lapses
• cognitive biasesconfirmation bias, anchoring bias, negativity bias, framing effect, optimism bias
• fallaciesstraw man, red herring, circular reasoning, ad hominem, fallacy
• misjudgingmisjudging, miscalculation, snap judgment, prejudice, assumption