IPA: //sɪsˈtɛm.ɪk//
KK: /sɪsˈtɛmɪk/
Done according to a fixed plan or method, often in a careful and organized way.
The researchers took a systematic approach to gather data for their study.
Systematic → It is formed from "systema" (from Greek, meaning a whole made of parts) and the suffix "-atic" (meaning pertaining to). The word "systematic" refers to something that pertains to or is organized according to a system.
Think of a 'system' as a whole made of parts, and remember that 'systematic' means something organized according to that system.