histrionical

Adjective

histrionic (comparative more histrionic, superlative most histrionic)

1. Of or relating to actors or acting.
   • After three years of constant applause, Miss [Elizabeth] O'Neill directed her steps towards the summit of histrionick exertion, being engaged for the season of 1814 at Covent Garden, where she made her first entrée as Juliet, on the 6th of October, being at once recognised as the first Hibernian...1816 July, “Miss O’Neill. [From an English magazine.]”, in The North American Review and Miscellaneous Journal, volume III, number VIII, Boston, Mass.: Wells and Lilly […], →OCLC, page 164

   Synonyms:

   actorish, actressy, dramatic, theatrical

2. (broadly) Excessively dramatic or emotional, especially with the intention to draw attention.
   • [F]oppiſh airs / And hiſtrionic mumm'ry, that let down / The pulpit to the level of the ſtage, / Drops from the lips a diſregarded thing.1785, William Cowper, “Book II. The Time-piece.”, in The Task, a Poem, […], London: […] J[oseph] Johnson; […], →OCLC, page 74

   Synonyms:

   hammy, melodramatic, overdramatic, sensationalized, stagy

   Antonyms:

   undramatic, understated, stoic