Synonyms for Un-systematic:

• adj.

  •desultory (adjective)
  • haphazard,
  • Deviating,
  • aimless,
  • rambling,
  • unstable,
  • without purpose,
  • unsystematic,
  • chance,
  • Orderless,
  • erratic.
  •disorganized (adjective)
  • disordered,
  • muddled,
  • disorderly,
  • Shuffled,
  • screwed up.
  •fragmentary (adjective)
  • fractional,
  • partial,
  • piecemeal,
  • part,
  • scrappy,
  • discrete,
  • incoherent,
  • disjointed,
  • bitty,
  • sketchy,
  • disconnected.
  •haphazard (adjective)
  • devil-may-care,
  • unpremeditated,
  • uncoordinated,
  • incidental,
  • casual,
  • unthinking,
  • any old way,
  • purposeless,
  • Designless,
  • fluke,
  • unconsidered,
  • slapdash,
  • sudden,
  • spontaneous,
  • unorganized,
  • hit-or-miss,
  • helter-skelter,
  • unconcerned,
  • arbitrary,
  • unconscious,
  • reckless,
  • careless,
  • slipshod,
  • any which way,
  • random,
  • willy-nilly,
  • loose,
  • accidental,
  • offhand,
  • all over the map,
  • desultory,
  • unexpected.
  •indiscriminate (adjective)
  • promiscuous,
  • extensive,
  • wide,
  • variegated,
  • spot,
  • multifarious,
  • unselective,
  • Mingled,
  • broad,
  • varied,
  • wholesale,
  • shallow,
  • uncritical,
  • mongrel,
  • undiscriminating,
  • motley,
  • general,
  • unplanned,
  • mixed,
  • miscellaneous,
  • Imperceptive,
  • sweeping,
  • assorted,
  • superficial.
  •irregular (adjective)
  • changeable,
  • out of order,
  • jerky,
  • fragmentary,
  • inconstant,
  • occasional,
  • shaky,
  • fluctuating,
  • unsteady,
  • unsettled,
  • eccentric,
  • shifting,
  • infrequent,
  • fitful,
  • uneven,
  • discontinuous,
  • recurrent,
  • sporadic,
  • weaving,
  • patchy,
  • unpunctual,
  • unreliable,
  • aberrant,
  • intermittent,
  • faltering,
  • up and down,
  • nonuniform,
  • uncertain,
  • capricious,
  • spasmodic.
  •slipshod (adjective)
  • neglected,
  • sloppy,
  • imperfect,
  • untidy,
  • inexact,
  • inaccurate,
  • unthorough,
  • junky,
  • tattered,
  • tacky,
  • botched,
  • screwed-up,
  • unmeticulous,
  • fouled-up,
  • messed-up,
  • raunchy,
  • disheveled,
  • negligent,
  • shabby,
  • shoddy,
  • faulty,
  • scruffy,
  • scrubby,
  • bedraggled,
  • fly-by-night,
  • threadbare.
  •unorganized (adjective)
  • messed up,
  • Unarranged.
  •unsystematic (adjective)
  • jumbled,
  • topsy-turvy,
  • out-of-whack,
  • dislocated,
  • untrained,
  • out-of-control,
  • scattered,
  • all over the place,
  • messy,
  • indiscriminate,
  • tumult,
  • scrambled,
  • undisciplined,
  • unrestrained,
  • confused,
  • unkempt,
  • out-of-step,
  • disorganized,
  • cluttered,
  • heterogeneous,
  • slovenly,
  • out-of-line,
  • irregular,
  • uncombed,
  • chaotic,
  • unmethodical,
  • mixed up.

Antonyms for Un-systematic:

• adj.

  • desultory
    organized, systematic.
  • disorderly
    neat, systematized, trim, orderly, Behaved, disciplined, ordered, manageable, arranged, well-behaved, conforming.
  • disorganized
    planned, methodical, tidy, regulated.
  • fragmentary
    all, total, complete, unbroken, whole.
  • haphazard
    designed, specific, careful, intentional, painstaking, thought-out, particular, definite, straight, deliberate.
  • indiscriminate
    critical, chosen, selective, discriminatory.
  • irregular
    conventional, even, flat, standard, regular, common, constant, normal, level, steady, dependable, usual, reliable, smooth, continuous.
  • slipshod
    well-done, polished, refined.