"chestier" in the adjective sense
1. big-chested, chesty
marked by a large or well-developed chest
"he was big-chested, big-shouldered and heavy-armed"
2. arrogant, chesty, self-important
having or showing feelings of unwarranted importance out of overbearing pride
"an arrogant official"
"chesty as a peacock"
Source: WordNet® (An amazing lexical database of English)
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