1. excessively formal, affected, or artificial in manner or behavior; lacking naturalness or spontaneity
Usage: often used to describe speech, writing, or social conduct that seems stiff or pretentious

Examples

• The actor's overmannered performance made the dialogue sound wooden and unconvincing.
• Her overmannered speech patterns suggested she was trying too hard to impress the audience.
• The novel's overmannered prose style made it difficult to engage with the characters.
• He adopted an overmannered accent that nobody found believable.
• The overmannered etiquette of the Victorian era now seems quaint to modern readers.
• She criticized the overmannered gestures in the ballet production as lacking authenticity.