Decay
Decay noun - A gradual sinking and wasting away of mind or body.
Mouldiness and decay are semantically related. In some cases you can use "Mouldiness" instead a noun "Decay".
Mouldiness
Cite this Source
Mouldiness and Decay. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/decay/mouldiness
Decay & Mouldiness. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/decay/mouldiness>.
Mouldiness or Decay. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/decay/mouldiness.
Google Ngram Viewer shows how "decay" and "mouldiness" have occurred on timeline