Obnoxious (adjective)

1. Highly objectionable or offensive.
2. Arousing disgust or resentment.

Origin:

From latin obnoxious, from ob- "in front of" + nocere "to har.m"

Examples:

1. He found the arrogant man obnoxious.
2. The obnoxious smell of the garbage was overwhelming.
3. The obnoxious noise from the construction site was making it hard to concentrate.
4. She found his obnoxious behavior unbearable.
5. The obnoxious child was constantly causing trouble.