Improperly
Improperly adverb - In a mistaken or inappropriate way.
Weaken and improperly are semantically related. In some cases you can use "Weaken" instead a verb "Improperly".
Nearby Word: improper
Weaken
Weaken verb - To diminish the physical strength of.
Improperly and weaken are semantically related. Sometimes you can use "Improperly" instead a verb "Weaken".
Cite this Source
Weaken and Improperly. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/improperly/weaken
Improperly & Weaken. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/improperly/weaken>.
Weaken or Improperly. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/improperly/weaken.
Google Ngram Viewer shows how "improperly" and "weaken" have occurred on timeline