unprepared
extempore
extemporaneously
extemporarily
off the cuff
ad libitum
impromptu
spontaneously
ad lib
cold
unripe
ex tempore
half-cocked
unpremeditated
unprepped
unprovided for
ill-prepared
underpreparation
a la minute
unpremedicated
unplanished
underprepared
unready
nonprepared
lack
unstaged
non-prerequisite
unprefigured
from scratch
unused
extemporaneous
ad-lib
off-the-cuff
offhand
extemporary
unrehearsed
offhanded
offhandedly
preparing
noninitiating
prep
tinned
preparement
uncommenced
nonpreparatory
preparingly
postpreparative
out of the blue
unconsidered
improvize
extemporize
unendowed
extemporise
improvise
circumstantially
accidentally
unbegun
unprepackaged
ready-made
unexpectedly
by chance
nonpredisposed
nonprepackaged
unreadiness
noninitiation
unexperimented
uninitiated
inconsummate
uninitiate
unprocessed
planned
unplaned
primeless
naive
acephalous
preparative
staged
uninstructed
ahead of the game
preparatory
propaedeutic
nonpredifferentiated
unprecipitate
unawares
unpredestinated
standby
prepensive
unstarted
unpostponable
unprepared
unripe
half-cocked
unpremeditated
unprepped
unprovided for
ill-prepared
a la minute
unpremedicated
ex tempore
unplanished
underprepared
unready
nonprepared
unstaged
non-prerequisite
unprefigured
extempore
impromptu
unused
extemporaneous
ad-lib
off-the-cuff
offhand
extemporary
unrehearsed
offhanded
noninitiating
tinned
uncommenced
nonpreparatory
postpreparative
unconsidered
unendowed
unbegun
unprepackaged
ready-made
nonpredisposed
nonprepackaged
unexperimented
uninitiated
inconsummate
uninitiate
unprocessed
planned
unplaned
primeless
naive
acephalous
preparative
staged
uninstructed
preparatory
propaedeutic
nonpredifferentiated
unprecipitate
unpredestinated
prepensive
unstarted
unpostponable
out of the blue
extempore
extemporaneously
extemporarily
off the cuff
ad libitum
impromptu
spontaneously
ad lib
cold
ex tempore
offhand
offhanded
offhandedly
preparingly
circumstantially
accidentally
unexpectedly
by chance
unawares
underpreparation
preparing
prep
preparement
unreadiness
noninitiation
standby
lack
ad lib
ad-lib
improvize
extemporize
extemporise
improvise
English words for 'without preparation; not prepared for'
As you may have noticed, above you will find words for "without preparation; not prepared for". Hover the mouse over the word you'd like to know more about to view its definition. Click 
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