The word "top pest" is often used to describe someone or something that is extremely bothersome or irritating. Antonyms for this term would be words that describe the opposite of these traits. Some possible antonyms for "top pest" might include words like "helpful," "agreeable," "pleasant," "amiable," "charming," or "friendly." These words suggest someone who is well-liked and easy to get along with, rather than someone who is constantly causing problems. By learning these antonyms, you can better describe the characteristics of the people and situations in your life, and ultimately communicate more effectively.