Odious means extremely unpleasant and hateful. An odious man, odious comparisons, an odious task.
It is strong and formal, and it says the thing deserves hatred rather than merely causing it. Comparisons are odious is a proverb going back centuries. In international law, odious debt is a doctrine that a people need not repay what a despot borrowed against them. Note odium; and that the Latin means hatred.
1adjectiveodiousExtremely unpleasant and hateful.
“He's an odious little man who bullies everyone who works for him.”
synonyms: repugnant, loathsome
odious is a quality of hatefulness.
Latin odiosus comes from odium, hatred. Annoy and ennui come from the same hatred through French.
Proto-Indo-European
*h₃ed-
Latin
odiōsus
Old French
odieus
Middle English
odious
English, today
odious
Built from
From Middle English odious, from Old French odieus, from Latin odiōsus, from odium (“hate”).
Etymology from Wiktionary, CC BY-SA