The term "puffing ups" refers to a state of inflated ego or self-importance. As such, antonyms for this term would be words that indicate the opposite, such as humble, meek, modest, unassuming, or self-effacing. Other antonyms might include words that suggest a lack of pride or arrogance, such as unpretentious, down-to-earth, low-key, or self-deprecating. In many cases, these antonyms describe individuals who are comfortable with their own limitations and do not feel the need to constantly assert their superiority over others. By embracing these humble traits, individuals can create more authentic and genuine connections with those around them, rather than alienating others with their inflated ego.