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.
One can feel a deep suggestiveness in this waka.
Even after the movie ended, a lingering impression remained in my heart.