Synonyms for Un-planned:

• adj.

  •accidental (adjective)
  • coincidental,
  • chance,
  • contingent,
  • fluky,
  • uncalculated,
  • unplanned,
  • incidental,
  • inadvertent,
  • casual,
  • unforeseen.
  •aimless (adjective)
  • fanciful,
  • wayward,
  • shiftless,
  • any which way,
  • fits and starts,
  • wandering,
  • desultory,
  • indecisive,
  • hit-or-miss,
  • goalless,
  • irresolute,
  • unguided,
  • bits-and-pieces,
  • drifting,
  • heedless,
  • undirected,
  • unpredictable,
  • frivolous,
  • stray,
  • unavailing,
  • purposeless,
  • fickle,
  • flighty,
  • thoughtless,
  • Objectless,
  • indiscriminate,
  • blind,
  • wanton,
  • careless,
  • directionless,
  • vagrant,
  • pointless,
  • capricious,
  • erratic.
  •casual (adjective)
  • improvised,
  • odd,
  • extemporaneous,
  • extempore,
  • uncertain,
  • infrequent,
  • by chance,
  • offhand,
  • impulsive,
  • serendipitous,
  • irregular,
  • occasional,
  • unpremeditated.
  •chance (adjective)
  • fortunate,
  • unlooked for,
  • lucky,
  • at random,
  • happy.
  •coincidental (adjective)
  • circumstantial.
  •extemporaneous (adjective)
  • fake,
  • Autoschediastic,
  • toss out,
  • extemporary,
  • toss off.
  •extemporaneous/extemporary (adjective)
  • informal,
  • jamming,
  • Improviso,
  • taking for ride,
  • on-the-spot,
  • makeshift,
  • free,
  • tossed off,
  • thought out loud,
  • off the cuff,
  • spur-of-the-moment,
  • automatic,
  • unstudied,
  • IMPROV,
  • expedient,
  • immediate,
  • on impulse,
  • Improvisatory,
  • snap,
  • made-up,
  • ad hoc,
  • ad lib,
  • unprepared,
  • winging it,
  • at first glance,
  • tossed out,
  • by ear,
  • off the top of head.
  •fortuitous (adjective)
  • arbitrary,
  • providential,
  • fluke,
  • luck in,
  • lucky-dog,
  • luck out.
  •hit-or-miss (adjective)
  • trial-and error,
  • aimless,
  • slipshod.
  •impetuous (adjective)
  • furious,
  • going off deep end,
  • Subitaneous,
  • fervid,
  • unrestrained,
  • headlong,
  • rash,
  • hurried,
  • rushing,
  • eager,
  • precipitous,
  • unbridled,
  • impassioned,
  • precipitant,
  • restive,
  • violent,
  • abrupt,
  • sudden,
  • swift,
  • passionate,
  • precipitate,
  • unthinking,
  • vehement,
  • hasty,
  • ardent,
  • unreflecting,
  • fierce.
  •inadvertent (adjective)
  • unheeding,
  • Irreflective,
  • unwitting,
  • unconcerned,
  • uncaring,
  • negligent,
  • unmindful,
  • feckless,
  • reckless,
  • undevised,
  • unthought,
  • not on purpose.
  •indiscriminate (adjective)
  • jumbled,
  • mongrel,
  • multifarious,
  • spot,
  • mixed,
  • promiscuous,
  • superficial,
  • uncritical,
  • motley,
  • varied,
  • broad,
  • Designless,
  • Imperceptive,
  • Mingled,
  • assorted,
  • variegated,
  • unselective,
  • shallow,
  • general,
  • wide,
  • undiscriminating,
  • extensive,
  • sweeping,
  • unconsidered,
  • confused,
  • unsystematic,
  • unmethodical,
  • wholesale,
  • miscellaneous,
  • heterogeneous.
  •purposeless (adjective)
  • motiveless,
  • vacuous,
  • good-for-nothing,
  • senseless,
  • nonsensical,
  • empty,
  • worthless,
  • Purportless,
  • Floundering,
  • unnecessary,
  • fustian,
  • uncalled for,
  • unhelpful,
  • Unpurposed,
  • needless,
  • meaningless,
  • unprofitable.
  •rambling (adjective)
  • gangling,
  • here and there,
  • straggling,
  • spreading,
  • at length,
  • scattered,
  • trailing,
  • strewn,
  • covering.
  •random (adjective)
  • unaimed,
  • slapdash,
  • Driftless.
  •spontaneous (adjective)
  • irresistible,
  • natural,
  • unprompted,
  • free spirited,
  • unbidden,
  • unavoidable,
  • instinctive,
  • off top of head,
  • from the hip,
  • voluntary,
  • unconstrained,
  • impetuous,
  • uncontrolled,
  • Unartful,
  • inevitable,
  • involuntary,
  • up front,
  • unforced,
  • unconscious,
  • simple,
  • break loose,
  • unsophisticated,
  • uncontrived,
  • off-the-cuff,
  • down,
  • unpremediated,
  • uncompelled,
  • ad-lib.
  •unplanned (adjective)
  • impromptu,
  • unexpected,
  • undesigned,
  • haphazard,
  • fortuitous,
  • adventitious,
  • random,
  • accidental,
  • aleatory,
  • unintended,
  • spontaneous,
  • unintentional.
  •unprepared (adjective)
  • unready,
  • off the top of one's head,
  • unschooled,
  • taken off guard,
  • ill-considered,
  • winged,
  • played by ear,
  • unskilled,
  • caught off guard,
  • untrained,
  • unrehearsed,
  • unaware,
  • not prepared,
  • napping,
  • surprised,
  • vulnerable.
  •unwitting (adjective)
  • forgetful,
  • Inconversant,
  • unacquainted,
  • ignorant,
  • uninformed,
  • uninstructed,
  • incognizant,
  • unknowing,
  • comatose,
  • unsuspecting,
  • Unmeant,
  • unfamiliar,
  • numb,
  • oblivious,
  • innocent.

• adv.

  •out of the blue (adverb)
  • not predicted,
  • unprepared for,
  • surprising,
  • unanticipated.

Antonyms for Un-planned:

• adj.

  • accidental
    expected, decided, essential.
  • aimless
    specific, directed, pointed, definite, resolute, purposeful, particular, goal-oriented, sensible, motivated, determined.
  • casual
    serious, formal, painstaking.
  • chance
    foreseeable, understood.
  • extemporaneous/extemporary
    Rehearsed, written, prepared, read.
  • fortuitous
    calculated, unlucky.
  • impetuous
    circumspect, calm, cautious, wise, considerate, thoughtful, reflective.
  • inadvertent
    careful, advertent, attentive.
  • indiscriminate
    selective, discriminatory, chosen, critical.
  • purposeless
    significant, useful.
  • rambling
    straightforward, straight, connected, direct.
  • unplanned
    premeditated, intentional, systematic, planned, designed, methodical, intended, deliberate.
  • unwitting
    Realizing, conscious, witting.