ненадежныйdubius [a, um];
родникscaturigo [inis, f];
ехатьvehi, or, vectus
abruptus [a, um];subitus [a, um] (bellum;tempestas;casus subitam avertere curam);subitaneus [a, um] (imber;timor);improvisus [a, um];inexspectatus [a, um];inopinatus [a, um];repentinus [a, um];