This is the 3052nd most frequent Russian word.
значимых
"Significant" or "important."
The word 'значимых' is used here as an adjective in the genitive plural form to describe the traces being significant.
Важные события оставляют значимых следов в истории.
Important events leave significant traces in history.
Here, 'значимых' is used as an adjective in the genitive plural form to describe people whose opinions matter.
Для достижения целей необходимо учитывать мнения значимых людей.
To achieve goals, it is necessary to consider the opinions of significant people.
In this sentence, 'значимых' is used as an adjective modifying 'sources,' indicating their importance or relevance.