non obstante noun 1preposition 1forms 1 noun1 •(historical) A clause in old English statutes and letters patent, designating a licence from the Crown to do a thing notwithstanding any laws to the contrary. preposition1 •(no longer used) notwithstanding, regardless of, despiteNon obstante the Change of Religion, the Plough-boies, and also the Schooleboies will keep-up and retain their old Ceremonies and Customes and priviledges. — 1687 formsnon obstantes