The word "ratbag" is commonly used to describe someone who is unpleasant, obnoxious, or troublesome. Some antonyms for this word are kind, pleasant, easygoing, friendly, and likeable. These words describe people who are enjoyable to be around, who don't cause problems or inconvenience others, and who make others feel at ease. Other antonyms include respectful, courteous, thoughtful, and considerate. These words are often used to describe people who show good manners, who are well-behaved and who are concerned about the feelings and needs of others. Using these antonyms can provide a helpful contrast to negative qualities associated with ratbags.