unpremeditatedly
extemporaneously
indeliberate
unawares
off the top of one's head
unaccommodatingly
unhamperedly
promiscuous
inofficiously
uncensoriously
unplannedly
unabidingly
unprophetically
unplanned
nonjudgmentally
unadvisedly
decrementless
unintended
unalteringly
nonconsensually
unhinderedly
unneededly
undividedly
unagitatedly
unjudgmentally
unwarrantedly
leeroy
unbegrudging
uncomplicatedly
unilateralize
unconditionately
noncomprehending
unpatronizingly
undistinguishedly
incomprehensive
throw off
preemptively
ad-lib
unsacerdotally
nonintentionally
offhand
unwritten
unduly
spontaneous
unperseveringly
unobservedly
unprioritized
unfussily
unplanished
unremittedly