inopinanter

ĭn-ŏpīnans, antis, adj., not expecting, unaware (freq. in the historians;

not in Cic.): inscios inopinantesque Menapios oppresserunt,

Caes. B. G. 4, 4:

impeditos et inopinantes aggressus,

id. ib. 1, 12:

imprudente atque inopinante Curione,

id. B. C. 2, 3:

rex in potestatem inopinanti (ei) venerat,

Nep. Dat. 3, 4:

suis inopinantibus,

Liv. 27, 48, 14.— Hence, adv.: ĭnŏpīnanter, unexpectedly, Suet. Tib. 60.