Definitions from Wiktionary (obnoxious)

▸ adjective:  Extremely offensive or unpleasant; very annoying, contemptible, or odious.
▸ adjective:  (of a person) Unjustly disagreeable, argumentative or objectionable; brazenly rude.
▸ adjective:  (archaic or obsolete) Exposed or vulnerable to something, especially harm or injury.
▸ adjective:  (obsolete)
▸ adjective:  Causing harm or injury; harmful, hurtful, injurious.
▸ adjective:  Deserving of blame or punishment; blameworthy, guilty.
▸ adjective:  Under the authority or power of someone; subject, subordinate; hence, deferential, submissive, subservient.
▸ adjective:  Followed by to: likely to do something.

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