injurious

Synonyms: abusive adverse bad baneful corrupting damaging dangerous deadly deleterious destructive detrimental disadvantageous evil harmful iniquitous insulting libeling mischievous nocent nocuous noxious opprobrious pernicious poisonous prejudicial ruinous slanderous unconducive unhealthy unjust wrongful

Antonyms: aiding assisting beneficial constructive curing fixing good healing helpful mending nice