It is considered unlucky to break a mirror.
Unlucky at roulette; an unlucky day.
He could not have chosen a more unlucky time for his own quiet.
It was under these unlucky auspices that the elections of new deputies took place in 1829.
A papyrus in London contains a calendar of lucky and unlucky days.
The southern and western peoples still practise infanticide as regards children born on several unlucky days in each month.
But if the neighbours are hostile the unlucky group is cut off from fire, igni interdicitur.