detrimental
Cross references: 1. pernicious 1. det.ri.men.tal \.de-tr*-'ment-*l\ aj : causing detriment : HARMFUL, DAMAGING - det.ri.men.tal.ly av 2. detrimental n : an undesirable or harmful person or thing
Cross references: 1. pernicious 1. det.ri.men.tal \.de-tr*-'ment-*l\ aj : causing detriment : HARMFUL, DAMAGING - det.ri.men.tal.ly av 2. detrimental n : an undesirable or harmful person or thing