This is the 17910th most frequent Russian word.
утраченный
Lost; forfeited; missing.
Here, 'утраченный' describes time that has been irreversibly lost or wasted, emphasizing its absence and the inability to recover it.
Утраченное время никогда не вернуть.
Lost time can never be regained.
In this sentence, 'утраченные' is used to describe documents that have been misplaced or inaccessible, causing inconvenience.
Его утраченные документы привели к сложности ситуации.
His lost documents led to a complicated situation.
'Утраченные' here refers to knowledge or skills that have faded or diminished due to a gap in learning or practice, implying an effort to regain them.