less important Antonyms

momentous radical ruling serious significant significative spanner special substantial substantive prized principal notional numerary omphalic paramount pertinent pivotal plasmic predominant prime telling umbilical heavyweight big league major league life-or-death lifesaving mainframe Guatemala City meaningful nonsignificant Kabul Bangui valid valuable vital weighty all important of the essence asymptotic amoebic casting vote overwhelmingly aliquot clef climatic core crucial currentness