I. adjective Date: 1590 obviously harmful ; damaging , see: pernicious ~ly adverb II. noun Date: 1831 an undesirable or harmful person or thing
DETRIMENTAL
Meaning of DETRIMENTAL in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012