adjective. Causing or capable of causing harm; injurious.

Full of harm; hurtful; injurious; noxious; detrimental; mischievous.

Synonyms Pernicious, baneful, deleterious, prejudicial.

adjective. Full of harm; injurious; hurtful; mischievous.

adjective. of a kind likely to be damaging; injurious

adjective. causing or capable of causing harm

"Chinese authorities have in recent months stepped up their already strict control of the flow of information online, including efforts this year to discourage the spread of what they term "harmful information" and "rumors"—words increasingly used for opinions and information not approved by the Communist Party."

beneficial  harmless  

harm  injurious  

abusive  bad  bruising  calumniatory  calumnious  

adverse  beneficial  destructive  detrimental  disastrous  

adverse  also  antagonistic  bad  bad for