secondary Antonyms

primary superseding required reigning regulative regnant propaedeutic prominent proemial prior principal requisite rooter superior structural star staple spanner sovran sovereign significant senior ruling primogenial pressing predominant precessional plasmic pivotal paramount overruling overriding overmost outstanding preeminent prefixed preludial primal prime prevenient prevalent prepotent preponderant prepollent premier prelusive original most important halide guvnor