Deleterious(adjective)
Harmful to something.
Hindi meaning:हानिकार; प्रतिकूल
Synonyms: Harmful, Injurious, Detrimental, Inimical
Antonyms: Beneficial, Advantageous, Favourable, Constructive
Example: Cigarettes have a proven deleterious effect on the nervous system.
Trick to remember: Relate deleterious with ‘delete’, cigarettes ko life se delete na karna body ke liye deleterious h 
