Insubstantial
Insubstantial adjective - Being of a material lacking in sturdiness or substance.
Old and insubstantial are semantically related. In some cases you can use "Old" instead an adjective "Insubstantial".
Old
Old adjective - Being of advanced years and especially past middle age.
Insubstantial and old are semantically related. Sometimes you can use "Insubstantial" instead an adjective "Old".
Mutual synonyms
Both words in one sentence
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More than once, gods are bluffed into believing that they have been immobilized, being told that they've been held in a spell reinforced with various insubstantial ingredients, the least immaterial being "the dust from an old king's tomb".
Source: Insubstantial Ingredients
Cite this Source
Old and Insubstantial. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/insubstantial/old
Insubstantial & Old. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/insubstantial/old>.
Old or Insubstantial. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/insubstantial/old.
Google Ngram Viewer shows how "insubstantial" and "old" have occurred on timeline