/ əbˈnɒkʃəs; NAmE -ˈnɑːk-/ adjective
extremely unpleasant, especially in a way that offends people
SYN offensive :
obnoxious behaviour
a thoroughly obnoxious little man
obnoxious odours
► ob·nox·ious·ly adverb
••
WORD ORIGIN
late 16th cent. (in the sense vulnerable to harm ): from Latin obnoxiosus , from obnoxius exposed to harm, from ob- towards + noxa harm. The current sense, influenced by noxious , dates from the late 17th cent.