A person who obstinately adheres to old ways in spite of clear evidence that they are wrong; an ignorant and bigoted opponent of reform
A traditional notion that is obstinately held although it is unreasonable; "He still holds to the old mumpsimous that a woman's place is in the kitchen."
{i} view obdurately held even when proven wrong; one who obdurately holds an erroneous belief; an inaccurate word or spelling which has become formally absorbed into a language through frequent usage
a traditional notion that is obstinately held although it is unreasonable; "he still holds to the old mumpsimous that a woman's place is in the kitchen