source: [たまこまーけっとのデラ・モチマッヅィが一人芝居をするGIF画像｜無料GIF画像検索 GIFMAGAZINE 936083]

of, for, or relating to acting, actors, or the theater:

(比較なし) 〖通例名詞の前で〗演劇の, 芝居に関する; 劇場用の, 劇場公開の

e.g. theatrical productions.

exaggerated and excessively dramatic:

〈行動･態度などが〉芝居じみた, 大げさな; 不自然な

e.g. Henry looked over his shoulder with theatrical caution.

a professional actor or actress:

〖集合的に〗本職の俳優

e.g. a boarding house that catered for theatricals.

theatricalism |THēˈatrəkəˌlizəm| noun

theatricalization |-ˌatrikəliˈzāSHən| noun

theatricalize |-ˌlīz| verb

mid 16th century: via late Latin from Greek theatrikos (from theatron ‘theater’) + -al.