IPA: /ˈplændʒənt/
KK: /ˈplænʤənt/
Having a sound that is sad and mournful, often loud and resonant.
The plangent melody of the violin filled the room with a sense of longing.
Plangent is derived from the Latin "plangere" (meaning to strike or beat) and the suffix "-ent" (indicating an agent or something that performs an action). The word describes a sound that is strikingly mournful or plaintive, as if it is beating upon the heart.
Think of a sound that 'strikes' ('plangere') you with its sadness — that's why plangent describes a mournful sound.