Antonyms of adj systematic

1 of 2 senses of systematic

Sense 1
systematic (vs. unsystematic) -- (characterized by order and planning; "the investigation was very systematic"; "a systematic administrator")

unsystematic (vs. systematic) -- (lacking systematic arrangement or method or organization; "unsystematic and fragmentary records"; "he works in an unsystematic manner")

Similarity of adj systematic

2 senses of systematic

Sense 1
systematic (vs. unsystematic) -- (characterized by order and planning; "the investigation was very systematic"; "a systematic administrator")
          Also See-> organized#2; regular#1

Sense 2
taxonomic, taxonomical, systematic -- (of or relating to taxonomy; "taxonomic relations"; "a taxonomic designation")