The term "big mouthed" is often associated with people who are vocal and loud, but it also has its antonyms. Some of the antonyms for the word "big mouthed" include discreet, reserved, subtle, soft-spoken, and timid. These are the opposite of those who are labelled big-mouthed, as they are careful with their words and often keep to themselves. People who are discreet, for example, are not likely to share gossip or personal information with others, while those who are soft-spoken are often introverted and prefer to speak quietly. These antonyms show that not everyone can be defined as big-mouthed and that there are different ways to communicate effectively.