Hollow
Hollow adjective - Curved inward.
Unproductive and hollow are semantically related. In some cases you can use "Unproductive" instead an adjective "Hollow".
Unproductive
Unproductive adjective - Producing no results.
Usage example: her attempts to write a novel have been unproductive
Hollow and unproductive are semantically related. Sometimes you can use "Hollow" instead an adjective "Unproductive".
Mutual synonyms
Related pairs
Cite this Source
Unproductive and Hollow. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/hollow/unproductive
Hollow & Unproductive. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/hollow/unproductive>.
Unproductive or Hollow. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/hollow/unproductive.
Google Ngram Viewer shows how "hollow" and "unproductive" have occurred on timeline