English Vocabulary Builder Practice Test 2026 – Your All-in-One Guide to Master Vocabulary Skills!

Think of a positive, sociable mood at a gathering. Bonhomie captures that sense of cheerful friendliness and easygoing good humor, so saying her attitude radiated bonhomie sounds natural and means she exuded warm, welcoming vibes. The other options don’t describe a mood or atmosphere: insuperable means unbeatable or insurmountable, which isn’t about how people feel or act; credulous means too trusting or gullible, not about a mood at a team event; portmanteau refers to a blended word, not a social demeanor. So bonhomie is the best fit for describing the vibe she projected.