This is the 9623rd most frequent French word.
désastreuses
Disastrous.
In this sentence, 'désastreuses' is used as an adjective to describe the negative and harmful nature of the consequences.
Les conséquences de cette décision ont été désastreuses.
The consequences of this decision were disastrous.
Here, 'désastreuses' characterizes the severe and detrimental effects of the repercussions.
Son comportement durant la réunion a conduit à des répercussions désastreuses pour l'équipe.
His behavior during the meeting led to disastrous repercussions for the team.
In this usage, 'désastreuses' modifies 'erreurs' to emphasize their significant and damaging impact.