Improperly
Improperly adverb - In a mistaken or inappropriate way.
Jam and improperly are semantically related. In some cases you can use "Jam" instead a verb "Improperly".
Nearby Word: improper
Jam
Jam verb - To fit (people or things) into a tight space.
Improperly and jam are semantically related. Sometimes you can use "Improperly" instead a verb "Jam".
Nearby Word: jamming
Mutual synonyms
Both words in one sentence
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If done improperly the gun may jam or malfunction.
Source: Unorthodox Reload - This seems to stem from the fact that the breech is pushed forward when the plunger bolt is pulled all the way back, meaning improperly aligned darts (or worse, darts damaged by these jams) can jam when you pull the bolt back.
Source: Toys / NERF Brand
Cite this Source
Jam and Improperly. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/improperly/jam
Improperly & Jam. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/improperly/jam>.
Jam or Improperly. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/improperly/jam.
Google Ngram Viewer shows how "improperly" and "jam" have occurred on timeline