Explanation:: Likely to change suddenly and without reason and therefore notable to be predicted (= expected before it happens) or depended on.
# Remaining Guess: 4
_ _ P_ _ _ _ C_ AB_ _
Choose A Letter:
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z