o ‧ ver ‧ rid ‧ ing /ˌəʊvəˈraɪdɪŋ◂ $ ˌoʊ-/ BrE AmE adjective [only before noun]
[ Word Family: noun : ↑ ride , ↑ rider , ↑ riding , ↑ override ; verb : ↑ ride , ↑ override ; adjective : ↑ overriding ]
more important than anything else:
a question of overriding importance
Their overriding concern is with efficient crime control.