Mona

Example:Mona and Bela are examples of names where Bela serves as an auditory or visual antonym due to its different sound and cultural use.

Definition:Bela is a name that can be considered as an antonym to Mona in terms of having a different sound and meaning. While Mona might imply grace or beauty, Bela does not carry a direct antonymical meaning but contrasts phonetically.