The term "most smart-ass" refers to someone who is excessively boastful and often disrespectful towards others. Antonyms for this term would include descriptions such as modest, humble, and courteous. A modest person would not brag about their accomplishments or intelligence, while a humble person would not flaunt their achievements in order to make others feel inferior. A courteous person, on the other hand, would be polite and considerate towards others, rather than insulting or dismissive. Using these antonyms, it is clear that a "most smart-ass" individual would be viewed in a negative light, while those who are modest, humble, and courteous would be looked upon favorably.