Which of the following is NOT a feature of formal writing?

The choice of including personal anecdotes is not a feature of formal writing because formal writing typically emphasizes objectivity and professionalism. It seeks to convey information, analysis, or argumentation without personal bias or subjective experiences. In contexts such as academic essays, business reports, or official documents, relying on personal anecdotes can detract from the credibility and seriousness of the work, making it feel more informal or anecdotal rather than authoritative.

In contrast, using complex vocabulary, employing complete sentences, and maintaining a structured format are all hallmark features of formal writing. Complex vocabulary enhances precision and sophistication in language, complete sentences ensure clarity, and a structured format contributes to the logical flow of ideas, making the writing more coherent and easier to follow. These elements work together to create a professional tone that is expected in formal contexts.