Sharp words are often used to describe harsh or critical language that can be hurtful to others. When communicating with others, it's important to choose words carefully to minimize hurt and maintain positive relationships. Some synonyms for sharp words include biting, acerbic, caustic, cutting, sarcastic, sardonic, and snarky. These words can be used to convey criticism or disapproval, but they also carry negative connotations and can create tension in conversations. On the other hand, kind and positive words such as supportive, encouraging, and uplifting can build rapport and increase trust in relationships. Therefore, it's important to use caution and choose words that accurately convey your message in a non-offensive manner.