overriding over·ri·ding UK/ˌəʊvə(ɹ)ˈɹaɪdɪŋ/ US/ˈoʊvɜrˌraɪdɪŋ/ uncommon adjective 1. having superior power and influence “the predominant mood among policy-makers is optimism” Synonymsparamountpredominantpredominatepreponderantpreponderating Similardominant WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.