un ‧ an ‧ tic ‧ i ‧ pat ‧ ed AC /ˌʌnænˈtɪsəpeɪtəd, ˌʌnænˈtɪsɪpeɪtəd/ BrE AmE adjective
[ Word Family: adjective : ↑ anticipatory , anticipated ≠ ↑ unanticipated ; verb : ↑ anticipate ; noun : ↑ anticipation ]
an unanticipated event or result is one that you did not expect SYN unforeseen :
an unanticipated increase in inflation