1. Loud and resounding: plangent bells.
2. Expressing or suggesting sadness; plaintive: "From a doorway came the plangent sounds of a guitar" (Malcolm Lowry).
[Latin plangēns, plangent-, present participle of plangere, to strike, lament; see plāk-2 in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.