ne ‧ o ‧ con ‧ serv ‧ a ‧ tive /ˌniːəʊkənˈsɜːvətɪv $ ˌniːoʊkənˈsɜːr-/ BrE AmE ( also ne‧o‧con ) /ˈniːəʊkɒn $ -oʊkɑːn/ noun [countable]
a member of a ↑ right-wing movement that has developed in the US since the 1960s and believes that the US should protect its national interests by using its power to influence other countries
—neoconservative adjective