by chance
accidentally
unexpectedly
circumstantially
preplanning
offhand
preplanned
preplan
unbooked
prepensive
macroplanning
scheduleless
unpremeditated
unawares
scheduled
unreserved
unpremeditatedly
requirement
prerequisite
unplanished
back of one's mind
nonscheduled
leeroy
a la minute
prearrange
planification
unprepared
microplanning
unconsidered
unplannedly
predesigned
precommit
aforethought
planless
forelay
spare
preallotted
untimetabled
free
unequal to
unplanned
extemporaneously
incompetent
unorganised
unschedulable
booked
set-aside
pencil in
engaged
incapable
predecide
unproposed
overplanning
cancelled
preset
preorganize
ad lib
arrange
preorganized
predetermined
ad libitum
impromptu
spontaneously
unplaned
slated
unscheduled
intended
catch
framing
planning
scheduling
meditated
programming
programing
prearrangement
prebisected
casually
thought-out
frame
draw up
compose
lay out
ill-conceived
in a flash
prebooked
predeliberate
prepacked
apple cart
spur of the moment
sine die
instantly
outright
snap judgment
chart
instantaneously
preprepared
according to plan
informal

English words for 'without advance planning'

As you may have noticed, above you will find words for "without advance planning". Hover the mouse over the word you'd like to know more about to view its definition. Click search related words by phrase or description. to find a better fitting word. Finally, thanks to ChatGPT, the overall results have been greatly improved.

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