Poor-mouthing, which means to be excessively critical or negative about oneself or one's situation, has several antonyms. They include being self-assured, confident, and optimistic. Instead of poor-mouthing, one can praise oneself and others, highlighting accomplishments and successes. Being positive and optimistic helps to boost morale and creates a more positive atmosphere. Additionally, one can also be genuine and honest about their situation without being negative. This allows for constructive criticism and finding solutions to problems. By using positive language and uplifting attitudes, individuals can avoid poor-mouthing and instead promote a more positive and productive environment.