1. the quality or state of being long in duration or extent

Examples

• The lengthiness of the meeting frustrated everyone in attendance.
• She complained about the lengthiness of the application process.
• The novel’s lengthiness made it difficult to finish in one sitting.
• The lengthiness of his speech caused several people to leave early.
• Despite its lengthiness, the documentary was engaging throughout.
• The lengthiness of the winter seemed unbearable this year.