1. big-chested, chesty, robust (vs. frail)

usage: marked by a large or well-developed chest; "he was big-chested, big-shouldered and heavy-armed"

2. arrogant, chesty, self-important, proud (vs. humble)

usage: having or showing feelings of unwarranted importance out of overbearing pride; "an arrogant official"; "arrogant claims"; "chesty as a peacock"

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See also: chesty (Dictionary)