noun
suggestiveness; lingering charm; lasting impression
Primarily a literary and aesthetic term, especially in the context of traditional Japanese poetry (waka, haiku) and art, referring to the emotional resonance or implied feeling that remains after the work is finished. In broader usage, it can describe any lingering emotional aftertaste.
この和歌には深い余情が感じられる。
One can feel a deep suggestiveness in this waka.
映画が終わった後も、余情が心に残った。
Even after the movie ended, a lingering impression remained in my heart.