not ‧ with ‧ stand ‧ ing AC /ˌnɒtwɪθˈstændɪŋ, -wɪð- $ ˌnɑːt-/ BrE AmE preposition , adverb formal
in spite of something SYN despite :
Notwithstanding differences, there are clear similarities in all of the world’s religions.
Fame and fortune notwithstanding, Donna never forgot her hometown.