DELETERIOUS


Meaning of DELETERIOUS in English

del ‧ e ‧ ter ‧ i ‧ ous /ˌdeləˈtɪəriəs◂, ˌdelɪˈtɪəriəs◂ $ -ˈtɪr-/ BrE AmE adjective formal

[ Date: 1600-1700 ; Language: Medieval Latin ; Origin: deleterius , from Greek deleisthai 'to hurt' ]

damaging or harmful SYN detrimental :

the deleterious effects of smoking

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.