This is the 13675th most frequent Russian word.
необдуманных
"Unconsidered" or "thoughtless."
The word "необдуманных" is used here to describe decisions that are made without careful thought or consideration.
Необдуманных решений лучше избегать.
It is better to avoid unconsidered decisions.
In this sentence, "необдуманных" is applied to actions that were performed impulsively or without thorough evaluation.
Её необдуманных действий привели к серьёзным проблемам.
Her rash actions led to serious problems.
Here, "необдуманных" relates to deeds performed without adequate reflection or forethought, emphasizing self-learning from past mistakes.