Subsidence

مترادف و متضاد subsidence

1. noun The sudden collapse of something into a hollow beneath it
   Synonyms: cave in, settling, subsiding
2. noun The act or process of becoming less active or intense
   Synonyms: abatement, ebb, letup, remission, slackening, wane
3. noun An abatement in intensity or degree (as in the manifestations of a disease)
   Synonyms: remission, remittal