In arrears and Unsolved

In arrears

In arrears adverb - In debt.

Unsolved and in arrears are semantically related. In some cases you can use "Unsolved" instead an adjective phrase "In arrears".

Unsolved

Unsolved adjective - Not solved.

In arrears and unsolved are semantically related. Sometimes you can use "In arrears" instead an adjective "Unsolved".
Cite this Source
Unsolved and In arrears. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/in_arrears/unsolved
In arrears & Unsolved. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/in_arrears/unsolved>.
Unsolved or In arrears. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/in_arrears/unsolved.
Google Ngram Viewer shows how "in arrears" and "unsolved" have occurred on timeline