芝居がかった の訳語→ rhetorical theatrical
大それた の訳語→ ambitious bold heady over-venturesome soar
派手な の訳語→ big bright brightly coloured debonair defiant extensive fair fancy flamboyant flashy flowery glitzy jazzy loud lurid luxuriant notable ornate productive radiant satisfactory show-off slashing spectacular tricky vividly