[ uhb-nok-shuhs ]
/ əbˈnɒk ʃəs /


highly objectionable or offensive; odious: obnoxious behavior.
annoying or objectionable due to being a showoff or attracting undue attention to oneself: an obnoxious little brat.
Archaic. exposed or liable to harm, evil, or anything objectionable.
Obsolete. liable to punishment or censure; reprehensible.

Origin of obnoxious

1575–85; < Latin obnoxiōsus harmful, equivalent to ob- ob- + noxiōsus noxious

SYNONYMS FOR obnoxious

1 See hateful.

ANTONYMS FOR obnoxious


ob·nox·ious·ly, adverbob·nox·ious·ness, nounun·ob·nox·i·ous, adjectiveun·ob·nox·i·ous·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for obnoxiousness

British Dictionary definitions for obnoxiousness

/ (əbˈnɒkʃəs) /


extremely unpleasant
obsolete exposed to harm, injury, etc

Derived forms of obnoxious

obnoxiously, adverbobnoxiousness, noun

Word Origin for obnoxious

C16: from Latin obnoxius, from ob- to + noxa injury, from nocēre to harm
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012