This is the 4153rd most frequent French word.
criminel
"Criminel" means "criminal" in English.
Here, 'criminel' is used as a noun to describe someone who has committed a crime.
Le criminel a été arrêté par la police.
The criminal was arrested by the police.
In this sentence, 'criminel' functions as an adjective describing the behavior.
Son comportement criminel est préoccupant.
His criminal behavior is concerning.
'Criminelles' is an adjectival form agreeing in gender and number with 'accusations,' referring to the nature of the charges as related to criminal law.