i-adjective
bitterly unpleasant; disgusting; shameful
Describes a strong feeling of disgust, bitterness, or moral repulsion toward a situation, behavior, or memory. Often used for personal experiences that leave a bad taste.
彼の裏切りは苦々しい思い出だ。
His betrayal is a bitterly unpleasant memory.
その政
The politician's corruption was a scandalous affair.