squirrelly
uncertain
hit-or-miss
roughly
hitchy
raging
erratically
spasmodic
scrambling
unpredictably
volatile
nonlinear
bold
like a hen on a hot griddle
vagaristic
unstable
impredictable
unevenly
capricious
unexpectable
unsteadiness
jumpily
errabund
disordered
tremble
crop up
hippity
pop out
toss-up
pop
pop up
burst out
even chance
rambling
tossup
bolt
wrinkle
prankish
arch
unpredictability
puckish
clunkingly
sidle
impish
mischievous
vagary
implike
capriciousness
on acid
pixilated
wicked
unreliable
treacherous
between the hammer and the anvil
volatility
left-handed
compulsive
hyperexcitable
unshuffleability
ankylosed
fuzzy
erraticalness
inevitable
mysterious
freakish
limp
dodgeful
misfavored
quizzical
unregular
Sisyphean
foibled
quiddity
jumpiness
twist and turn
scamble
bistochastic
erraticity
snakebit
difform
unpredictable
burst
wavering
heteroclite
precipitating
between a rock and a hard place
discrepantly
Hamletic
off guard
eager
anomalistic
erraticness
unawares
alternative
erratical