By ear
Casual and by ear are semantically related. in extemporaneous topic. In some cases you can use "Casual" instead an adjective phrase "By ear", when it comes to topics like unrehearsed, improvised.
Mutual synonyms
Cite this Source
Casual and By ear. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/by_ear/casual
By ear & Casual. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/by_ear/casual>.
Casual or By ear. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/by_ear/casual.
Google Ngram Viewer shows how "by ear" and "casual" have occurred on timeline