Antonyms for the phrase "more boasting" may include humble, modest, unassuming, or self-deprecating. These words suggest a lack of self-promotion or excessive pride, and instead, indicate a sense of humility or modesty. Acting with humility means you would not brag about your accomplishments, but rather acknowledge them without seeking praise. Modesty implies that you have a quiet confidence in your abilities and are not inclined to brag or show off. An unassuming person is characterized by being humble and not trying to draw attention to themselves. Finally, if someone is self-deprecating, they are critical of themselves in a humorous way, rather than boasting about their qualities or accomplishments.