One is oppressed with tedium―oppressed with ennui.
無聊に苦しむ - 斎藤和英大辞典
What is today? ennui 今日は何だ? アンニュイ... - 映画・海外ドラマ英語字幕翻訳辞書
I am oppressed with tedium―oppressed with ennui―bored to death.
非常に退屈だ - 斎藤和英大辞典
"It saved me from ennui,"
「僕を退屈から救ってくれたよ」 - Arthur Conan Doyle『シャーロック・ホームズの冒険』
I am suffering from ennui―oppressed with ennui―oppressed with tedium―Time hangs heavily on my hands―I find my time heavy on my hands.
徒然に苦しんでいる - 斎藤和英大辞典
He is oppressed with ennui―oppressed with tedium―fretting and fuming in inaction―He does not know what to do with himself―He does not know how to dispose of his time―Time hangs heavy on his hands.
彼は無事に苦しんでいる - 斎藤和英大辞典
He is oppressed with tedium―oppressed with ennui―fretting and fuming in inaction―He does not know what to do with himself―He does not know how to dispose of his time―Time hangs heavy on his hands.
彼は無聊に苦しんでいる - 斎藤和英大辞典
Hetauma (poor at a glance but distinct and having charm in truth) and datsuryoku-kei (ennui-style) are also different from yabo.
ヘタウマや脱力系も、また野暮とは異なる。 - Wikipedia日英京都関連文書対訳コーパス
But Genji was taking a long time to visit Oi and Lady Akashi had been relieving herself from ennui by plucking an old koto.
しかし源氏はなかなか大堰を訪れず、明石の御方は古琴を爪弾き無聊を紛らわせていた。 - Wikipedia日英京都関連文書対訳コーパス
To provide a remote controller for a toilet having a function for displaying characters of teletext so as to relieve ennui during the use of a toilet and enable comfortable use of the toilet. 文字放送の文字を表示する機能を有するので、トイレ使用中の退屈感をまぎらわし快適なトイレ使用が可能となるトイレ用リモコンを提供する。 - 特許庁