misassumptions

Faulty initial premises

Misassumptions are mistaken beliefs or incorrect premises taken for granted.

The word emphasizes that the error lies not in reasoning from assumptions but in the assumptions themselves: The project failed because of misassumptions about customer demand.

Often used in retrospective analysis when faulty premises become clear.

errors

misconceptions

Incorrect assumptions held true

misinterpretations · misreadings · misestimations · misreckonings · oversights · blunders · mistakes · inaccuracies · fallacies · flaws

biases

preconceptions

Opinions formed beforehand

stereotypes · generalizations · prejudgments · partiality · snap judgments · foregone conclusions · narrow-mindedness · blind spots · cognitive biases · confirmation bias

Opposites
correctness of belief

misassumptionstruths

Accurate statements about reality

facts · certainties · verities · realities

epistemic method

misassumptionslogical deductions

Conclusions from valid reasoning

Family

misassumption

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Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G