Be unhappy
Mourn and be unhappy are semantically related. In some cases you can use "Mourn" instead a verb phrase "Be unhappy".
Mourn
Mourn verb - To feel deep sadness or mental pain.
Mutual synonyms
Cite this Source
Mourn and Be unhappy. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/be_unhappy/mourn
Be unhappy & Mourn. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/be_unhappy/mourn>.
Mourn or Be unhappy. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/be_unhappy/mourn.
Google Ngram Viewer shows how "be unhappy" and "mourn" have occurred on timeline