noun
sense of defeat; feeling of being beaten
Describes the emotional state after losing or failing, often used in personal, competitive, or professional contexts.
試合に負けて、強い敗北感を味わった。
After losing the match, I felt a strong sense of defeat.
彼はプロジェクトの失敗で敗北感にさいなまれている。
He is tormented by a sense of defeat over the project's failure.
劣等感 is an inferiority complex about one's own abilities, not necessarily tied to a specific defeat.
Compound of 敗北 (defeat) + 感 (feeling, sense). The exact historical derivation is straightforward; the word follows a common pattern for expressing emotional states.