прил.
разг. of that time, of the time, of those times/days, then тогдашнее время
тогдашн|ий - разг. at that time после сущ., of those days после сущ.
(о должностных лицах) the then
~яя обстановка the situation at that time, the situation then obtaining
~ие обычаи the customs of those days
~ министр the then minister