arbitrary
dynamic
dynamical
incautious
self-generated
spontaneous
unpremeditated
a bit previous
abrupt
actuating
adrift
advanced
afloat
alternating
amorphous
animating
automatic
blind
breakneck
breathless
brittle
capricious
causal
causative
changeable
changeful
changing
choppy
compelling
compulsive
conditioned
corruptible
deciduous
desultory
deviable
deviating
deviative
deviatory
devil-may-care
different
directive
disorderly
divaricate
divergent
diversified
diversiform
dizzy
driving
dying
eccentric
electrifying
emotional
ephemeral
erose
erratic
evanescent
extemporaneous
impulse
impulsion
impulsively
impulsiveness
impulsor
affectionate
ardent
energetic
excitable
foolish
hasty
imaginative
impetuous
irresponsible
irritable
passionate
reckless
convulsive
repulsive