be pessimistic aboutとは 意味・読み方・使い方

By that incident, Hidetada exposed throughout the country his incompetence in the military affairs, which made Ieyasu grow pessimistic about the future of the Tokugawa family after his death, and although Ieyasu originally intended to make Tokugawa and Toyotomi families coexist in accordance with the last wishes of Hideyoshi, he abandoned that intention and chose to abolish the Toyotomi family so that he could be freed from anxiety about the future.発音を聞く 例文帳に追加

このことで軍事面に於いてその無能振りを全国に示した秀忠及び自分の死後の徳川家の将来を悲観した家康が、もともとは秀吉の遺言に従い、徳川・豊臣両家共存の意向だったのを取り止めて、後顧の憂いを絶つべく豊臣家廃絶の道を選んだのではないか。 - Wikipedia日英京都関連文書対訳コーパス