unarranged (?.)
- ad-lib
- aimless
- amorphous
- capricious
- casual
- caught napping
- caught off balance
- caught short
- desultory
- disarticulated
- discontinuous
- disjunct
- disordered
- dispersed
- disproportionate
- erratic
- extemporaneous
- extemporized
- fitful
- formless
- frivolous
- gratuitous
- haphazard
- hasty
- hit-or-miss
- immethodical
- impromptu
- improvised
- inchoate
- incoherent
- indiscriminate
- irregular
- makeshift
- meaningless
- misshapen
- nonsymmetrical
- nonsystematic
- nonuniform
- orderless
- planless
- precipitate
- promiscuous
- random
- rough-and-ready
- senseless
- shapeless
- snap
- spasmodic
- sporadic
- straggling
- straggly
- surprised
- systemless
- taken aback
- taken by surprise
- taken unawares
- tripped up
- unbegun
- unclassified
- unconcocted
- uncontrived
- undeliberated
- undevised
- undirected
- ungraded
- unhatched
- unjoined
- unmade
- unmanufactured
- unmethodical
- unordered
- unorganized
- unplanned
- unpremeditated
- unprepared
- unprimed
- unready
- unsorted
- unstudied
- unsymmetrical
- unsystematic
- ununiform
- vague
- wandering