deep-seated grudge; rancor; spite
A formal, literary yojijukugo expressing a long-held, bitter resentment. Often used in historical or dramatic contexts.
He swore revenge out of deep-seated rancor.
The dispute was not a mere difference of opinion but stemmed from a long-held grudge.
恨み is a common, everyday word for grudge or resentment, while 意趣遺恨 is a formal, literary yojijukugo implying a deeper, more persistent bitterness.
遺恨 is a simpler, more direct term for lasting grudge; 意趣遺恨 combines it with 意趣 (spite) to intensify the sense of deep-seated malice.
A yojijukugo composed of 意趣 (spite, ill will) and 遺恨 (lasting grudge). The exact historical derivation is uncertain, but the combination reinforces the idea of deep, lingering resentment.