This is the 3146th most frequent Russian word.
лишних
"Unnecessary" or "extra."
In this sentence, "лишних" means extra, indicating something unnecessary or more than needed.
У меня нет лишних слов.
I don't have extra words.
Here, "лишних" refers to things that are not needed.
Мы избавляемся от лишних вещей.
We are getting rid of unnecessary things.
In this usage, "лишних" conveys the concept of avoiding what is superfluous or excessive.