deleterious

Adjective

1. harmful to living things; “deleterious chemical additives”
   • Synonyms
     • hurtful
     • injurious
   • Similar to
     • harmful
   • Related
     • injury
     • hurt
     • harm
     • trauma
     • harmfulness
     • injuriousness

From LookUp: Adjective

1. Formal causing harm or damage divorce is assumed to have deleterious effects on children