theatrical -
suited to or characteristic of the stage or theater; "a theatrical pose"; "one of the most theatrical figures in public life"
untheatrical not suited to or characteristic of the stage or theater; "a well-written but untheatrical play"; "an untheatrical personality"
histrionic,
melodramatic characteristic of acting or a stage performance; often affected; "histrionic gestures"; "an attitude of melodramatic despair"; "a theatrical pose"
