unsystematic (adjective) unsystematic: disorderly
Sinonime: all over the place,
chaotic, cluttered,
confused, dislocated,
disorganized,
heterogeneous,
indiscriminate,
irregular, jumbled,
messy, mixed up, out-of-control, out-of-line, out-of-step, out-of-whack,
scattered, scrambled, slovenly, topsy-turvy,
tumult, uncombed, undisciplined,
unkempt, unmethodical,
unrestrained, untrained