Notwithstanding

adv. however, nevertheless

prep. in spite of, despite

conj. although, despite the fact that, in spite of the fact that

Adverb
1. despite anything to the contrary (usually following a concession); "although I'm a little afraid, however I'd like to try it"; "while we disliked each other, nevertheless we agreed"; "he was a stern yet fair master"; "granted that it is dangerous, all the same I still want to go"
(synonym) however, nevertheless, withal, still, yet, all the same, even so, nonetheless

(prep.)
Without prevention, or obstruction from or by; in spite of.
  

(adv. / conj.)
Nevertheless; however; although; as, I shall go, notwithstanding it rains.
  

In spite of, even if, without regard to or impediment by other things. - (read more on Notwithstanding)