self-deception
🇺🇸
/ˌself dɪˈsepʃn/
🇬🇧
/ˌself dɪˈsepʃn/
Believing something that isn't true, even when you know it's not.
He was in denial about his failing health, a clear case of self-deception.
彼は自分の健康問題を否認しており、自己欺きの明確な例です。