In English, '恨めし' carries a complex mix of resentment, bitterness, and lingering emotional weight. It's not just simple anger—it's that simmering feeling when someone you trusted deeply lets you down, like
sasuke's betrayal in 'Naruto' or the unresolved tension between Light and L in 'Death Note'. The closest equivalents might be phrases like 'How could you?' or 'I can't forgive this,' but they lack the poetic nuance. Literature sometimes uses 'accursed' or 'wretched' for dramatic effect, though those feel more archaic. Modern contexts might borrow from fandoms too—think 'I trusted you!' moments in 'The Last of Us Part II'.
Interestingly, English speakers often soften this emotion with sarcasm ('Thanks for nothing') or passive aggression ('Fine, whatever'). But the raw, unfiltered ache of '恨めし' truly shines in scenes like Makima's manipulations in 'Chainsaw Man', where words alone can't capture the betrayal. Maybe that's why subtitles sometimes just leave it untranslated.