Synonyms for Histrionics:

adj.

acting (adjective)
performing, performance, acting, drama.

n.

treacly, schmaltzy, mawkish, melodrama, sentimental, Theatricals, hysterics, maudlin. deceit, deception, pretense, put on, pretension. melodramatics, theatrics, feelings, style. acting (noun)
Theatricals.
communication (noun)
theatrical, representation, theatrical performance.
drama (noun)
melodrama.
histrionics (noun)
theatrical, representation, theatrical performance.
ostentation (noun)
showmanship, parade, dash, opulence, showiness, formality, Flagrancy, splashiness, pomposity, snazziness, grandiosity, flashiness, fuss, flamboyance, jauntiness, exhibitionism, ostentation, pomp, blatancy, sensationalism, bravado, rakishness, affectedness, grandiloquence, gaudiness, shamelessness, swaggar, garishness, dramatics, Bravura, ornateness, splendor, pageantry, flourish, boastfulness, pomp and circumstance, vanity.
theatrics (noun)
performance, dramatics, performing.

Other synonyms:

mawkish, maudlin, schmaltzy, melodramatics, theatrics, treacly. Theatricals, melodrama, drama, hysterics. sentimental. Other relevant words:
Theatricals, theatrics, acting, pretension, mawkish, drama, put on, performing, melodramatics, representation, melodrama, performance, hysterics, theatrical performance, theatrical.