случайный
accidentalis [e];
fortuоtus [a, um] (concursus);
improvisus [a, um];
inexspectatus [a, um];
inopinatus [a, um];
casualis [e];
obventicius [a, um];
temerarius [a, um] (error);
subitus [a, um] (imagines);
adventicius [a, um] , secundarius [a, um] , adjunctus [a, um];