"Putting on the air" implies a sense of pretension or false display. Antonyms for this phrase include being genuine, authentic, and sincere. Instead of faking it, one could consider being honest, straightforward, or transparent. Rather than putting on a facade, individuals can embrace their true selves and be real. Opposites of "putting on the air" also include humility, modesty, and simplicity. These antonyms suggest a sense of humbleness and lack of showiness, instead focusing on being true to oneself and connecting with others through honesty and openness. Overall, the antonyms for "putting on the air" indicate a value for genuine relationships and truthful interactions.