unpremeditated
unprepped
unprepared
staged
unripe
half-cocked
unscheduled
unconsidered
unprovided for
a la minute
prepensive
cancelled
planned
ex tempore
extemporaneously
unanticipated
extemporarily
extempore
out of the blue
unseen
unforeseen
unlooked-for
unplaned
preprepared
ill-conceived
scheduled
ad-lib
spontaneous
unwritten
ill-prepared
unplanished
nonpreparatory
uncoordinated
by chance
preplanned
ad lib
spontaneously
accidentally
ad libitum
circumstantially
unexpectedly
impromptu
nonscheduled
offhand
nonprepared
well-thought-out
semi-planned
aforethought
covered
meditated
nonpredisposed
intended
in order
odd
unstaged
preplanning
prepared
off
disposed
uncommenced
arrange
fain
ready
inclined
all dressed up and nowhere to go
casually
unforeknowing
untimed
nontimed
underprepared
pending
unforecasted
preparative
standby
unready
planning
unawares
preparatory
certain
unplanned
prelaunch
propaedeutic
fit
unendowed
foredesign
untimetabled
unstarted
deep-laid
foreprepare
unpredictable
extemporaneous
plan
extemporary

English words for 'not prepared or planned in advance'

As you may have noticed, above you will find words for "not prepared or planned in advance". 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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