This is the 9672nd most frequent Russian word.
череватый
Fraught with danger or consequences; likely to result in something undesirable.
Here, 'чреватый' is used to indicate that the experiment is likely to lead to a specific negative outcome.
Этот эксперимент чреват неприятными последствиями.
This experiment is fraught with unpleasant consequences.
In this sentence, 'чреватый' expresses the potential risks associated with making a hasty decision.
Принятие поспешного решения часто чревато ошибками.
Making a hasty decision is often fraught with mistakes.
Here, 'чреватый' highlights the potential for misunderstandings arising from his words.