A more thorough explanation:

Obnoxious is an adjective that describes something or someone that is offensive, unpleasant, or objectionable. It can also refer to something that is contrary or opposed to a principle or belief. In an archaic sense, it can mean something that is exposed to harm or liable to something undesirable.

• His obnoxious behavior at the party made everyone uncomfortable.
• The company's obnoxious policies towards its employees led to a high turnover rate.
• The politician's views on immigration were obnoxious to many people.
• The archaic meaning of obnoxious can be seen in the phrase "obnoxious to criticism," which means something that is vulnerable to criticism or attack.

These examples illustrate how obnoxious can be used to describe behavior, policies, beliefs, or even something that is vulnerable to harm or criticism. It is a negative term that implies something or someone is unpleasant or offensive.