Clammed up
Dumb and clammed up are semantically related. in quiet topic. In some cases you can use "Dumb" instead the word "Clammed up" as a verb or an adjective, when it comes to topics like silent, silence, taciturn, uncommunicative.
Dumb
Dumb adjective - Deliberately refraining from speech.
Clammed up and dumb are semantically related. You can use "Clammed up" instead the word "Dumb" as an adjective or a verb.
Mutual synonyms
Cite this Source
Dumb and Clammed up. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/clammed_up/dumb
Clammed up & Dumb. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/clammed_up/dumb>.
Dumb or Clammed up. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/clammed_up/dumb.
Google Ngram Viewer shows how "clammed up" and "dumb" have occurred on timeline