Regrettably and Unproductively

Regrettably

Regrettably adverb - By bad luck.

Unproductively and regrettably are semantically related. In some cases you can use "Unproductively" instead an adverb "Regrettably".

Unproductively

Unproductively adverb - In an unproductive manner.
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Synonyms for Unproductively

Regrettably and unproductively are semantically related. Sometimes you can use "Regrettably" instead an adverb "Unproductively".
Cite this Source
Unproductively and Regrettably. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/regrettably/unproductively
Regrettably & Unproductively. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/regrettably/unproductively>.
Unproductively or Regrettably. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/regrettably/unproductively.
Google Ngram Viewer shows how "regrettably" and "unproductively" have occurred on timeline