vicissitude in Bulgarian
vicissitude in Bulgarian
редуване
Regular change or succession from one thing to another, or one part of a cycle to the next; alternation; mutual succession; interchange; variability.
смяна
Regular change or succession from one thing to another, or one part of a cycle to the next; alternation; mutual succession; interchange; variability.
превра́тност
(often, in the plural) A change, especially in one's life or fortunes.