Flimsy
Flimsy adjective - Being of a material lacking in sturdiness or substance.
Nonvalid
Nonvalid adjective - Having no basis in reason or fact.
Usage example: a nonvalid theory that most scientists rejected long ago
Mutual synonyms
Related pairs
Cite this Source
Nonvalid and Flimsy. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/flimsy/nonvalid
Flimsy & Nonvalid. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/flimsy/nonvalid>.
Nonvalid or Flimsy. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/flimsy/nonvalid.
Google Ngram Viewer shows how "flimsy" and "nonvalid" have occurred on timeline