pleasantry. / (ˈplɛzəntrɪ) / noun plural -ries. (often plural) an agreeable or amusing remark, often one made in order to be politethey exchanged pleasantries. an agreeably humorous manner or style. What is the meaning of exchanging pleasantries? to exchange pleasantries: to make polite remarks, to make polite small talk. idiom.Read More →