Cover up
Cover up verb - To keep from being publicly known.
Look sullen and cover up are semantically related. In some cases you can use "Look sullen" instead a verb "Cover up".
Look sullen
Cover up and look sullen are semantically related. Sometimes you can use "Cover up" instead a verb phrase "Look sullen".
Cite this Source
Look sullen and Cover up. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/cover_up/look_sullen
Cover up & Look sullen. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/cover_up/look_sullen>.
Look sullen or Cover up. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/cover_up/look_sullen.
Google Ngram Viewer shows how "cover up" and "look sullen" have occurred on timeline