noxious
Cross references: 1. pernicious nox.ious \'na:k-sh*s\ aj [L noxius, fr. noxa harm; akin to L noce-re to harm, ne]c-, nex violent death, Gk nekros dead body 1: HARMFUL, DESTRUCTIVE 2: morally corrupting : PERNICIOUS {a ~ doctrine} 3: DISTASTEFUL, OBNOXIOUS - nox.ious.ly av