systematic UK /ˌsɪs.tɪˈmæt.ɪk/US /ˌsɪs.təˈmæt.ɪk/adjective 6adverb 1forms 2 adjective6 •Carried out according to a planned, ordered procedure. •Methodical; regular and orderly. •Treating an object as a system or coherent whole. •Of or relating to taxonomic classification. •Of, relating to, or in accordance with generally recognized conventions for the naming of chemicals. •(literary, no longer used) Of, relating to, or being a system. adverb1 •(informal) systematicallyAnd say, when them Gogs started out to put a thing through they did it systematic and thorough. — 2019 formsmore systematic · most systematic