entertaining /ˌɛntəɹˈteɪnɪŋ/adjective 1noun 1forms 3 adjective1 •Very amusing; that entertains.The smiths themselves were a grand lot of fellows, full of a robust, and sometimes Rabelaisian sense of humour, and between "heats," they could be most entertaining. — 1945 noun1 •(no longer used) Entertainment. formsentertainings · more entertaining · most entertaining